Cressi Leonardo vs. Suunto Zoop Novo Dive Computer

The Suunto Zoop Novo and Cressi Leonardo are highly regarded dive computers designed for beginner divers who have less than a hundred dives under their belt. As such, they are missing some advanced features so that their price can be kept to a minimum, while still providing enough capabilities to suit an absolute beginner.

Keep in mind that when we say that a dive computer is missing functionality, it doesn’t mean that it is a badly designed product or that it was an oversight by the manufacturer. Rather, entry-level dive computers are designed in such a way that beginners don’t have to make a $1000 investment into something they may never use. Entry-level dive computers are intended to help you gain experience, and if you decide to upgrade in the future then they can be kept as a back-up device.

At first sight, there doesn’t seem to be many differences between these two dive computers. Both have large displays that make them too bulky for use as a daily wristwatch, but how well do they perform underwater?

Cressi Leonardo Dive Computer Review

Cressi has earned a sterling reputation as one of the top brands to go to if you want robust and reliable dive computers.

The Leonardo from Cressi is no exception, as it is a durable and well-built model that is also very affordable. In fact, its price point makes it a direct competitor to the Suunto Zoop Novo. So what makes it stand out?

Features

Dive Modes

This dive computer has three operating modes: air, gauge, and Nitrox (between 21% and 50%). The gauge mode is perfect as a bottom-timer with bookmarking functions and an accurate profile sampling The dive time is tracked in terms of minutes and seconds.

The screen will also accurately display decompression limits and bottom times. Next, dive computers with a gauge mode means that the device can double as a backup computer if you plan on expanding your training and move into technical diving later on.

Size

This wrist mounted dive computer has dimensions of 67mm (2.63in) in diameter, and 27mm (1.06in) of thickness. It weighs 4.76oz (135g).

Navigation

The Cressi Leonardo only has a single button to help you navigate the menus. How it works is you push down to scroll through the menus, and you do a long press (hold the button) to access or set the menu options.

The interface has been designed to be navigable by a single button. It is very intuitive and designed with beginners who have never used a dive computer in mind. The button is large so that it is easily accessible, even if you are wearing thick gloves.

A downside of the single button design is that there is no back button. In other words, if you accidentally scroll past a menu, you can’t go back. You can only go forward until you loop through all of the menus back to the one you wanted to go to in the first place

Display

Next, the display screen of the Leonardo is clear thanks to its high-definition, edge-to-edge LCD screen. This makes it easy to read, even underwater with less than ideal visibility. The digits it displays are large-sized to improve legibility and make it easier to view vital information.

Water Activation

Never worry about missing data from your dives thanks to the automatic water activation feature. Once you go below 4 feet (1.2m), the DIVE AIR program automatically activates. In other words, it will start tracking your dive, and the dive ends and surface interval counter starts once you head back to 4 feet below water.

The minimum surface interval of the Leonardo is much shorter than the Suunto Zoop Novo at only 2-minutes. If you dive below 4 feet before two minutes have elapsed, it adds the data of your new dive onto the previous dive.

Backlighting

In low-light conditions, such as when diving at depth or at night, the backlighting functionality will prove to be a life-saver. It lasts only for a few seconds and turns off automatically to save battery. You can adjust the duration to fit your preferences.

Altitude

The altitude setting of the Leonardo can be adjusted for up to 3,700m (12,100ft). As a rule of thumb, you should wait at least three hours after changing altitudes before you start diving in order to gain equilibrium.

Battery Life

The Cressi Leonardo uses a 3V CR2430 battery which can be replaced by the user when it dies. Thanks to the battery indicator icon on the display, the remaining battery life is easy to see so you don’t have to worry about it suddenly dying on you in the middle of a dive.

A replacement battery back is very inexpensive, and if you don’t feel like doing it yourself, you can send it to a service center to do it for you. Doing it on your own is very easy, however if you damage the device then you will void any remaining warranty. On average, the battery life is two years assuming you do 50 dives a year.

Logbook Memory

Lastly, the Cressi Leonardo has a logbook memory of around 70 hours (60 dives) with a sampling rate of 20 seconds. The logbook will record the data of your air, Nitrox, and gauge dive modes.

Overall

After examining the features, we believe that the Cressi Leonardo is better suited for novice divers. It is not designed for experienced or commercial divers, and should not be used to dive beyond decompression limits. With that said, there are professional freedivers that use the Cressi Leonardo, so it depends on how deep you plan on diving and how you use it.

With that said, for those who want a highly affordable entry-level dive computer, the Leonardo is sufficient to help you with your first hundred or so dives. Afterwards, you can decide to upgrade to a higher-end model, and you can still keep the Leonardo around as a backup device. Intermediate level divers should look to the Suunto Zoop Novo instead.

You can read a more comprehensive review of the Cressi Leonardo here.

Suunto Zoop vs. Suunto Zoop Novo Differences

Ever since Suunto discontinued the Zoop in January 2017, the Zoop Novo is now their flagship entry-level model dive computer. What are the differences between the Zoop and Zoop Novo? Not much, however you do get some additional features.

First, Suunto has added new diving modes, freediving and gauge mode, in addition to the air and Nitrox dive modes it previously had. It also has an off mode so that you can recreationally dive without the Zoop Novo tracking any data. This conserves your battery life and prevents your legitimate data from getting diluted by casual dives.

Next, the Zoop Novo has a stopwatch timer, deep stop alarm, and can use dual time zones, all of these features were not present on the Zoop. Additionally, the Zoop Novo has 4 menu buttons instead of 3, which is intended to make it easier to navigate.

Additionally, the Zoop Novo has a significantly improved display. The Zoop Novo now has backlighting which the user can adjust so that it has different durations, or even turned off completely. On the other hand, the Zoop doesn’t have any backlighting options. The screen is now phosphor-luminescent, meaning it can glow in the dark if a light is shining directly at it.

Furthermore, the screen now features a familiar dot-matrix screen just like the higher-end dive computers from Suunto do. This improves the legibility such that displaying any information can be done without using abbreviations or other short-hand forms to get the information across.

It also has superior logbook memory of 140 hours at a sampling rate of 20 seconds (which can be adjusted to a rate of 10, 20, 30, and 60 seconds), whereas the Zoop only had a memory of 50 hours at a fixed 30s sampling rate. In freediving mode, the Zoop Novo’s sampling rate can be set at 1, 2, and 5 seconds. In terms of logbook functionality, the Zoop Novo made massive improvements over the original.

Lastly, the Zoop Novo utilizes a cable port which makes connecting to a computer much more straightforward compared to the clamp style connector that the Zoop had.

Now that you know the differences, let’s look at the Zoop Novo in-depth.

Suunto Zoop Novo Dive Computer Review

The Zoop Novo has been designed to be highly robust and functional. To this end, the screen is made of hard-wearing acrylic which can withstand numerous blows. The screen has a diameter of 61mm (2.4in) on the bezel, with a thickness of 28mm (1.1in). Additionally, the Zoop Novo weighs 120g (4.23oz). Even though the Zoop Novo is a wrist-mounted device, it is unfortunately too large for daily use.

Menus

The Zoop Novo has 4 buttons to navigate its interface with. The buttons are ergonomically placed so that they are easy to reach and spaced far enough apart that you won’t accidentally press more than one button at a time, even with gloves on.

Water Activation

Never forget to record a dive thanks to the automatic water activation feature. As soon as you go below 1.5 feet (0.5m), the device automatically turns on. Make sure you set the device to Dive Mode so that you can do your pre-dive checks. Once you reach 4 feet (1.2m), the Zoop Novo will switch to  Diving Mode at greater depths, and will return to Surface Mode at 4 feet and above.

Adjustable Dive Alarms

You may find the default settings of the Zoop Novo to be too conservative and that the alarms activate too early. By default, the Zoop Novo will remind you to make safety stops. You can adjust when the alarm activates by setting a maximum dive time and depth. Unfortunately, the Zoop Novo is missing a Deep Stop function. However, this is not an issue if you don’t dive below 20m (65ft).

Battery Life

As with all other dive computers, how long the battery life lasts depends on how often you use the device. As a point of reference, if you do more than 300 dives in one year, the battery will probably last only 8 to 12 months. If you do less than 100 dives a year, then it can last 2-3 times as long, approximately 18 to 24 months.

The Suunto Zoop Novo uses a 3V CR2450 user-replaceable battery. Replacement battery kits can be easily purchased in dive shops or online, often for less than $20. You can then change the battery yourself. Alternatively, if you are worried about voiding the warranty, you can send it to a service center.

Our full review of the Suunto Zoop Novo can be found here.

Cressi Leonardo vs. Suunto Zoop Novo Differences

Navigation

The most obvious difference between these two devices is that the Cressi Leonardo uses a single button for navigation, and the Suunto Zoop Novo has four buttons. Both designs have their pros and cons.

For example, an interface that is designed to be navigated with a single button is very straightforward and intuitive. Also, it is impossible to confuse which buttons do what if there is only one button. The downside is that switching between menus can be a pain, particularly if you press the button one time too many. You will have to cycle through all of the menus to get back to the menu that you really want.

On the other hand, having four menu buttons can make reaching specific menus faster since you don’t have to step through each menu one at a time. However, you have to remember what each button does which can be an issue if you are underwater and feeling nervous. Furthermore, when wearing thick gloves there is a possibility that you will press the wrong button. Thankfully, the buttons are spaced far apart in the Zoop Novo, so this is less of an issue. Also, it feels great to have a “back” button in case you scroll to the wrong menu.

Dive Modes

Navigation aside, the overall functionality of both dive computers are very similar in that they both provide you the basic features that beginner divers need to safely dive.

For instance, they both have air, Nitrox, and gauge modes. In fact, the Zoop Novo actually has two more modes: freediving and an off mode. Having an off mode can save on battery if you just want to dive recreationally without using any resources to track the time or depth data which can affect the next dive.

The Cressi Leonardo has a specific feature which is catered to dive shops which is the ability to wipe the dive computer after each dive. This makes the computer suitable for dive schools and shops to loan out these devices so that each diver can have a fresh start.

Of course, if you are purchasing the Leonardo for your personal needs, then leave that functionality off. In order for a dive computer to accurately calculate safe times for your dives, it needs to have data of past dives to factor in. If you keep resetting between dives, the data it provides may be inaccurate and can put your safety as risk.

Console or Wrist

Next, the Cressi Leonardo is available as either a console or personal wrist computer, whereas the Zoop Novo only comes as a wrist dive computer. The Leonardo has two console setups: one with a compass and one with a pressure gauge.

Logbook

The Suunto Zoop Novo has a larger logbook memory, which means it can record more dive data on the device itself without uploading it to a computer. All dive computers can upload their data to a computer so that you can store and analyze the data in greater detail. You can then plan future dives based on your past progress.

Frequent divers that want to share their dive data with friends or analyze it further should look towards the Suunto Zoop Novo. It has better functionality for that, such as the ability to upload the data to their Suunto Movescount Portal that allows you to share pictures, video, and geo-location. You can basically create a detailed record of your past dives and share it with friends and family.

Nitrox

Both the Cressi Leonardo and Suunto Zoop Novo can handle Nitrox up to 50%. Unfortunately, since they are entry-level dive computers, you cannot switch gases during a dive. If that feature is important to you, then you will have to look at higher-end models.

Algorithm

The RGBM model is the diving algorithm used for both dive computers. Technically, both are using a modified version of the RGBM model, so there are some slight differences. For instance, the Cressi RGBM algorithm is more liberal, whereas the Suunto RGBM is better suited for conservatism.

Whether one is better than the other depends on the preferences of the user. If you are a cautious person, then stick with the Zoop Novo. If you are diving with a buddy with a more liberal dive computer, then the Suunto algorithm might warn you about a deco stop much earlier than your buddy’s dive computer.

Missing Features

Since both of these dive computers are only entry-level models, they do not have a digital compass or air integration capabilities. However, this should not be an issue for recreational divers and beginners who don’t dive frequently.

Since these devices don’t have the more advanced features that higher-end models have, you will eventually have to upgrade them as you gain more experience. With that said, that is still far into the future, and both the Cressi Leonardo and Suunto Zoop Novo can last you for well over a hundred dives before you accumulate enough experience for additional functionality. And even when that happens, they can still be used as a back-up device.

Conclusion

Both the Cressi Leonardo and Suunto Zoop Novo are excellent options for your first dive computer, or if you are a casual diver. There’s no need to pay more for an advanced device with additional features that you may never use.

Even if you are really enthusiastic about diving and know that you will end up diving a lot in the future, it still makes the most sense to start with an entry-level device like the Cressi Leonardo or Suunto Zoop Novo. Since most divers do not live near a large body of water, it takes a while to get enough dives under their belt to outgrow the functionality of their dive computer.

Since both of these devices have a relatively conservative algorithm, some divers get annoyed at all of the warnings and alarms that keep on triggering. As entry-level dive computers, these devices are designed to keep you safe underwater and they tend to err on the side of caution. When you upgrade the dive computer in the future, you can decide if you want a more sophisticated device with a less conservative algorithm such as one from Oceanic.

It doesn’t make sense to purchase a high-end model right from the get-go. Start off with one of these entry-level dive computers until you gain enough experience and determine how you like to dive. By the time you are an experienced diver, there may be the next generation of dive computers with even more features that today’s models don’t have. Then you can get the newest model and keep your old one as backup.

When comparing these two models, we feel that overall the Suunto Zoop Novo is the smarter choice if you plan on diving deeper and want more functionality to keep you safe. Furthermore, its online portal for sharing pictures and videos of your dives makes the experience more fun. You can create a digital scrapbook along with your dive data for better logbooking.

For dive rental shops, the ability to reset the dive data for each dive makes it a no-brainer since the Suunto Zoop Novo does not have this capability.

Are you interested in how well the Cressi Leonardo compares to other entry level dive computers? Then check out our articles on the Cressi Leonardo vs. Mares Puck Pro and Cressi Leonardo vs. Cressi Giotto. You can also see how the Zoop Novo does vs. the Vyper Novo here, and vs. the Cressi Giotto here. You can also read our review of the Suunto Zoop Novo here.

 

Cressi Leonardo vs. Mares Puck Pro Dive Computer

Both Mares and Cressi are well-respected, trusted brands known for manufacturing reliable and safe diving equipment. Cressi are generally known for their wetsuits, and Mares for their awesome fins, so how do these companies measure up against each other with their dive computers? Which is better, the Cressi Leonardo or the Mares Puck Pro?

In this introduction, we’ll provide a quick comparison of these two entry-level recreational dive computers. The rest of the guide will provide a more in-depth look at each dive computer and a final overview before we decide on a winner.

Cressi Leonardo vs. Mares Puck Pro Review Summary

At a glance, the Puck Pro and Leonardo are both robust computers at attractive price points, making them the ideal option for people on a budget as well as for dive center rentals. Both devices use a single button to navigate the menu on their large display. The interface was simplified so that it is easily navigable with just the one button, which beginners may appreciate.

Next, the Cressi Leonardo’s logbook memory can store 70 hours (~60 dives) worth of dive data, whereas the Mares Puck Pro is only capable of half of that at 36 hours (~30 dives). Due to this, the lack of memory might pose a problem for divers that rely heavily on their dive computer for the dive logs instead of using a pen and paper logbook.

As for diving modes, both have three: air, Nitrox, and gauge (labeled as “bottom timer” on the Puck Pro). This is standard for entry-level dive computers and covers all of the basic uses; others may have an additional freediving mode.

The option for user maintenance is excellent for both dive computers. For some models, when the battery runs out the device must be sent to a dive shop or service center to be repaired. This is expensive and time-consuming. Thankfully, both the Cressi Leonardo and Mares Puck Pro have user-replaceable batteries. Bear in mind, should you damage anything then you void your warranty.

Overall, there are numerous similarities between the Cressi Leonardo and the Mares Puck Pro. We feel the Puck Pro has the edge in terms of functionality. For instance, it has the option for gas switching and the Cressi Leonardo doesn’t, though one can argue if this feature is even necessary on an entry-level computer. However, one advantage of the Cressi Leonardo is its sleeker frame compared to the Puck Pro, which is quite bulky on your wrist and can increase drag.

For those who want an easy-to-use, straightforward dive computer, both computers are excellent choices for beginner to intermediate divers. They are also affordable enough to be used exclusively as a backup dive computer. With that said, the Mares Puck Pro’s price makes it an irresistible option since it has similar features to the Cressi Leonardo. If you are just a recreational diver, the money saved might be better used to buy some cold ones to enjoy with your friends.

Cressi Leonardo Review

Technical Specifications:

  • Cressi RGBM algorithm.
  • Maximum operating depth of 120m (393ft).
  • Altitude adjustable up to 3,700m (12,139ft).
  • Logbook memory around 70 hours (60 dives).
  • Nitrox compatible up to 50%.
  • Time, date, temperature displays.
  • Switch between imperial or metric display.
  • 3-volt CR2430 battery.

The Cressi Leonardo is as beginner-friendly as they come for the first time diver to get through their first few dozen dives.There are no confusing button placements, there is only the single button that lets the user select their dive modes. From air, Nitrox and gauge modes, the data that the dive computer calculates is displayed on a large edge-to-edge high definition LCD screen.

Some of the critical information on display is the battery life of the Leonardo as indicated by the battery life icon. Next, the audible alarms will activate to let you know if any safety warnings are being ignored for extra peace of mind. At the touch of a button, you can also check your dive times, max depth, decompression status, ascent rate, as well as surface interval times between dives. All of this can be seen at a glance due to the way the data is laid out.

Furthermore, the Cressi Leonardo utilizes their new RGBM diving model that can calculate safe decompression limits for numerous dives over multiple days. Some additional features of the Cressi Leonardo are a calendar, clock, dive simulator, three conservatism settings, 75 hour dive memory (~60 dives) and the ability to reset the data after each dive.

Pros:

  • Highly affordable.
  • Easy-to-read, large and clear display.
  • User replaceable battery.
  • Audible alarm if the ascent rate and max depth is exceeded, or if decompression and surface interval warnings are ignored.
  • 70 hours of dive log data recorded.
  • Color options.
  • Data can be wiped after each dive for dive shops that rent out dive computers.

Cons:

  • Very basic functionality that is suitable for beginners but should be replaced once the diver gains more experience.
  • Too big to be used as a daily wristwatch.
  • Strap is too large and may need to be trimmed.

Get a much more thorough review of the Cressi Leonardo by clicking here.

Mares Puck Pro Review

Technical Specifications:

  • Can handle oxygen mixtures between 21% to 99% for Nitrox diving.
  • Adjustable ppO2 levels between 1.2 and 1.6 bar.
  • Maximum operating depth is 150m (492ft).
  • Altitude adjustments up to 3,700m (12,100ft).
  • Runs on the Mares-Wienke RGBM model, with adjustable conservatism settings.
  • 36 hours of logbook capacity at a sampling rate of 5 seconds.
  • Supports both imperial and metric display.

The Mares Puck pro features a large interface and a single button for navigation. The interface and menus have been designed to be navigable with the single button so that it is as intuitive and straightforward as they come. You can switch easily between air, Nitrox, and gauge modes, as well as adjust settings to suit your preferences.

Furthermore, the Puck Pro is a wrist-mounted dive computer with a maximum operating depth of 150m (492ft). For most divers, particularly beginners, this is more than enough. Once you reach these deep depths, the visibility becomes quite low. That is why the Puck Pro has a strong backlight, and you can set its duration between 1-10 seconds to preserve battery life.

Packed with useful features, the Mares Puck Pro also comes with a calendar, stopwatch, and altitude adjustment capabilities. These features are not always included in an entry-level dive computer. Should the battery run out, you can easily replace it on your own without sending it to a service center or dive shop.

You also get a 36-hour logbook memory with a frequent sampling rate of 5 seconds for the most accurate dive log data possible. With that said, to upload this data you would need to purchase a USB cable separately.

Next, the audible and visual alarms help remind you of when you are ascending too quickly or ignoring a safety warning. The goal is to keep you as safe as possible, however if you find it too annoying then you can adjust the conservatism settings.

Overall, the Mares Puck Pro provides all of the functionality that an entry-level dive computer provides. It is an excellent beginner dive computer and can serve as a backup device for experienced divers once they’ve upgraded.

Pros:

  • Simple, clear navigation with a single button.
  • Extremely detailed dive log data.
  • User-replaceable Lithium battery (CR2450); don’t need to send it into a service center.
  • Adjustable RGBM algorithm.
  • Deep operating depth of 150m (492ft).

Cons:

  • Too large to be worn as a wristwatch (hockey puck sized).
  • Cannot purge dive log; not ideal for dive shops that rent out computers.
  • No air integration or built-in compass.
  • Must purchase USB cable separately to upload data to computer.

Check out out full review of the Mares Puck Pro here.

Cressi Leonardo vs. Mares Puck Pro Comparison

Design and Display

The screen of the Mares Puck Pro is slightly over 2 inches in diameter, and almost one-inch thick. Its display is quite large and lets you see all of the critical information easily without having to switch menus. Even if you want to switch menus, the interface was designed to be navigated with just the single button that the Mares Puck Pro has. This button is large and thick so that it can be accessed even with thick gloves on.

Furthermore, the strong backlight of the Puck Pro makes it possible to read the screen even during night diving or at depth where there isn’t very much light. Just hold the button down for 5 seconds to activate it. You can also adjust the backlight duration between 1-10 seconds.

As for the Cressi Leonardo, it also features an intuitive, straightforward interface and a single button with which to navigate the menus with. As is the case with all single button designs, it is great when it works, but annoying when it doesn’t. Namely, if you accidentally press the button one time too many and skip a menu, there is no back button. So you have to scroll through all the menus to get back to where you wanted to go.

The Cressi Leonardo’s display is robust, but unfortunately its backlight is not very powerful. Thus, night diving and low-visibility conditions make it difficult to read the display, and it is not the best choice for deep dives.

Capabilities

Both the Puck Pro and the Leonardo have three dive modes: air, Nitrox, and gauge (called “bottom timer” in the Puck Pro). Since the Mares Puck Pro was designed for both beginners and intermediate divers in mind, it is capable of handling gas mixes between 21%-99%. The ppO2 levels can be set at 1.2 bars and 1.6 bars. The Puck Pro has a maximum operating depth of 150 meters (492ft).

The Cressi Leonardo only allows Nitrox levels between 21%-50%, on the other hand. The ppO2 levels are the same at 1.2 bars to 1.6bars, but the maximum operating depth is only 120meters (393ft).

Next, the Mares Puck Pro utilizes the Mares-Wienke RGBM , which was designed in collaboration with Dr. Bruce Wienke who was the leading figure in formulating accurate diving algorithms. The adjustability it provides is excellent by allowing the conservatism settings to be changed to suit one’s safety needs.

The Cressi Leonardo’s diving algorithm is their own RGBM algorithm which is essentially a modified version of the Haldane and Wienke algorithm but tweaked to their preferences. Divers have found that it is quite conservative since their target market is inexperienced or recreational divers. There is an option to completely reset the dive data, which is perfect for dive shops that rent out dive computers so that each new user has a fresh start.

Dive Log

Lastly, take note of the differences between the logbook memory of these two devices. The Mares Puck Pro has a shorter dive log capacity of 36 hours (~30 dives), however it has a more frequent sampling rate of 5 seconds.

The Cressi Leonardo can record data for up to 70 hours (~60 dives) but at a slower sampling rate of 20 seconds. Thus, the decision is whether you prefer a more detailed dive log that must be uploaded to a computer more frequently, or if you prefer recording more overall dives that have less detailed information.

Cressi Leonardo vs. Mares Puck Pro: The Verdict

In general, if you value overall performance then the Mares Puck Pro is the superior option over the Cressi Leonardo. It has a better display with a stronger backlight, can handle oxygen mixtures up to 99%, and the conservatism can be adjusted. Despite the lower dive log capacity, the data it does keep track is more accurate thanks to its 5 second sampling rate. You can tell that the Mares Puck Pro was designed not just for beginners, but intermediate divers as well.

With that said, the Cressi Leonardo is much cheaper and has all of the features that a beginner diver needs. If you are a casual or recreational diver that only dives a few times a year, then the Cressi Leonardo is a fantastic option for those on a tight-budget.

You may also be interested in learning about how the Cressi Leonardo compares to the Suunto Zoop Novo and if the Cressi Giotto is worth the extra money over the Leonardo. You might also be interested to see how the Mares Puck Pro fares against the Mares Smart.

Best Dive Computers Under $500 Review

The best dive computers under $500 are perfect if you are just a beginner or a recreational diver. At this price range, you can get a device that covers all of the basics to keep you safe while diving. However, they may be missing some of the fancy features like air integration or a digital compass that higher end models will have.

Within the past few years, dive computers have made huge strides in innovation compared to the years before. For well over a decade, the market for dive computers had remained stale, with many “new” models coming out that were just a rebranded version of an older model. It was mostly just simple LCD screens, minor tweaks to the algorithm, and an updated look.

Nowadays, features like color computers are starting to be available in lower price ranges, whereas previously only the $1000+ highest-end models had that functionality. Thanks to new competitors entering the market, the market is being shaken up and the latest models are offering features that weren’t available before.

In this review, we will be going over the best dive computers under $500 that we feel are the best bang for your buck. We have compiled this list based not only on their price, but also criteria like their screen quality, algorithm, customization, as well as any other unique features that make them stand out. Here are the top ones we recommend.

Our Top Picks:

Cressi Leonardo, black/grey

Cressi Leonardo

Cressi Leonardo, black/grey
3,020 Reviews
Cressi Leonardo, black/grey
  • A single button Dive Computer makes it effortless to set Air, Nitrox and Gauge modes. Ideal for beginners in Scuba Diving. It is easy to use and easy...
  • FO2 adjustable between 21% and 50%. PO2 adjustable between 1.2 bar and 1.6 bar. CNS oxygen toxicity graphic indicator.
  • Three levels of user adjustable conservatism. Visual and distinct, easy-to-hear audible alarms

The Cressi Leonardo is a dive computer designed for recreational use and affordability. At a glance, you will find a user-friendly computer with all of the features a beginner or casual freediver needs with an emphasis on efficiency, safety, and reliability.

Its interface is very intuitive and can be navigated with only a single button for those who just want to get into the water quickly without worry about any complex features. The Leonardo is available either as a console or wrist-watch.

Display:

A major selling point of the Cressi Leonardo is its edge-to-edge, high-definition LCD screen. It has been designed to have the optimal balance of proportions, screen contrast, and digit size. The information is further sectioned by clear lines.

These little details make all of the difference in low-visibility conditions and can really help a diver in stressful situations. For instance, the oversized digits make monitoring critical information much easier.

We like how crucial information like the battery indicator is displayed prominently on the main display, as is the depth, time, and temperature. The secondary display shows information regarding the gas mix (Nitrox or air), the ppO2 setting, and any conservatism setting.

Lastly, the backlight activates if you hold down the button for five seconds, and is automatically turned on if the alarm triggers.

Diving Modes

The Cressi Leonardo has three diving modes: Nitrox, air, and gauge. Divers can change the ppO2 levels to between 1.4 and 1.6. Furthermore, the Leonardo can only be used for Nitrox mixes up to 50%.

Next, the air diving mode is automatically activated by water once you go below 1.2m (4ft) and once you ascend above that depth the surface interval countdown timer will start automatically. Keep in mind that this dive computers’ minimum surface interval is only two minutes, so once two minutes have elapsed it will count as the next dive if you dive again.

Lastly, gauge mode functions as a bottom timer and can be used as a basic freediving mode. It displays the dive time in minutes and seconds, though the Leonardo does not have a dedicated apnea timer which other entry-level computers do.

Adjustable Alarms

Before you encounter any trouble, the Cressi Leonardo’s audible and distinct alarms will alert you to critical information. For instance, it has a depth alarm, ascent rate alarm (the maximum rate is 10m or 32ft per minute), and a no-decompression limit. Furthermore, there’s even a safety stop alarm which displays a STOP icon with the depth and time of any dive performed beneath 32ft.

These audible alarms are accompanied by an on-screen indication for depth, and if you exceed the recommended ascent rate, it will display a SLOW icon. This can be irritating, but it should get the point across. If you don’t want to be hounded by all of these warnings, you can turn the alarms off. For beginner divers, this is not recommended.

Conservatism Settings

The Cressi Leonardo has three conservatism settings you can choose from. It is one of the most conservative dive computers on the market, which is ideal for beginner divers who want to play it safe.

However, once you start getting a few dives under your belt, you may start to notice that you keep approaching deco well before your buddy. To minimize this, set the conservative level to Safety Factor 0 (SF0).

Battery

The battery is designed to last for three years (estimated that a user would perform 50 dives per year), so recreational freedivers will probably stay within that limit. But even if the battery were to die quickly for some reason, the CR2430 battery it uses can be easily replaced by the user without any tools.

If you ever find yourself with a dead dive computer when you’ve just set sail on a liveaboard, you will have a much better chance of getting it fixed. Other dive computers require the user to pay quite a bit to send it to a dedicated service center just to replace the battery.

Decompression Model

The Leonardo utilizes Cressi’s Reduced Gradient Bubble Model (RGBM) algorithm, which is a modified version of the Haldane model with integrated RGBM factors created with help from Dr. Bruce Wienke.

Dr. Bruce Wienke is a pioneer in the field of dive algorithms and he created the original RBGM algorithm which many algorithms are based off of. He has worked with Suunto since the late 90s to make the most advanced dive algorithm, and he has lent his expertise to Cressi for this dive computer.

The adapted version used in the Cressi Leonardo is modeled after the nine tissue compartment model with saturation half times between two and a half and 480 minutes. This dive algorithm also takes into account silent micro-bubbles and is conservative in regards to multi-day diving and repetitive dives.

To put it into simpler terms, the RGBM algorithm used in the Cressi Leonardo uses a timer and depth sensor to determine how much gas is theoretically being inhaled and exhaled by your body. By calculating this data, the computer then determines your no-decompression limit (NDL).

Since this dive computer is very conservative, you may find yourself reaching your NDL faster than your dive buddies who use other brands. However, you can adjust the conservatism level by changing the safety factor. There are three values: SF0, SF1, SF2, with the factory setting being SF0.

Overall

The Cressi Leonardo is one of the best beginner dive watches as well as a fantastic dive computer under $500. In fact, it may be the perfect first dive computer for recreational divers.

There’s lots to like about it: it has an easy-to-read, clear display, color options, multiple diving modes, a great algorithm, one menu-navigation, visual and audible alarms, and many more features.

You can take it with you on numerous dives thanks to its larger logbook memory of around 70 hours (60 dives) and long-lasting, user replaceable battery. Furthermore, it has a depth display of up to 120m (393ft) and altitude adjustments up to 3,700m (12,139ft).

By holding its large single button for 5 seconds, the backlight will turn on allowing you to see the display in low-visibility conditions. Speaking of the single button, the menu navigation is very intuitive and easy to maneuver with just that button. It also makes it easier to operate if you are wearing thick gloves.

Lastly, the Cressi Leonardo comes at a very attractive price point. It’s hard to beat a dive computer with all of these features from a reputable manufacturer like Cressi when they are selling it for such an affordable price. The Cressi Leonardo is a solid and robust dive computer that does everything it says on the tin at an attractive price, and we highly recommend it as your first computer.

Pros:

  • Intuitive one-button menu navigation.
  • Attractive price.
  • Logbook memory of 70 hours (60 dives).
  • Loud alarms will keep you alerted of any safety violations.
  • Three conservatism modes to choose from.
  • The battery is easily replaceable by the user without special tools. Other dive computers may force the user to send it to a dedicated service center at great expense.
  • Can easily reset the computer to erase the memory of past dives. This is perfect for dive centers, schools, and shops that rent out dive computers so a new diver can start fresh.

Cons:

  • With the menu designed around one button navigation, it is very simple to cycle through the options and get to the menu you want. However, if you accidentally pass the menu you were looking for, you have to cycle through all the others just to get back as there is no back button.
  • While this computer isn’t large, it’s still not practical for use as a daily watch.

Read our full review of the Cressi Leonardo here.

Suunto Zoop Novo

SUUNTO Zoop Novo Wrist Scuba Diving Computer, Black, Without USB
  • Operating modes: air, nitrox, gauge and freedom modes
  • Programmable for 21% to 50% oxygen mixtures
  • Imperial or metric programmable, decompression stop data, audible alarms

The Suunto Zoop Novo is the upgraded model of the Suunto Zoop, which is one of the world’s best-selling entry-level dive computers. As its successor, it has some added functionality, but is it enough to justify upgrading, and how does it fare against other entry-level dive computers?

Design

Let’s start with how it is designed. Normally the overall design isn’t a key feature worth fussing about in a dive computer, but in the case of the Zoop Novo, it’s a major plus. For starters, it has a massive display at 4cm (1.33in) in diameter and is guarded by tough acrylic which makes it able to withstand the odd impact.

Furthermore, the large and legible digits make reading it at a glance very easy, even for those with less than perfect eyesight. Unfortunately, due to its size it is not ideal for normal everyday use, but as a dive watch it is fantastic thanks to its practicality, durability, and functionality.

Navigation

The Suunto Zoop Novo has four buttons to make navigation easier. The buttons are: mode, select, up, and down, all of which are clearly marked. Combined with the large display, and it is a breeze to navigate through the menus and get to the screen you want.

Additionally, the four buttons are ergonomically placed and big, so that they are not only well-spaced but easy to press on the right button, even if you have thick gloves on.

Adjustments

As you already know, there is always a risk of decompression sickness when diving. Particularly if you have certain risk factors (obesity, circulatory issues, age) then you should change the algorithm setting to be more conservative.

Thankfully, the Zoop Novo lets you select between three modes for an extra level of security: P0, P1, and P2. The first setting, P0, is the default setting for ideal conditions. On the other hand, P2 is the most conservative setting, and P1 is somewhere in the middle.

Additionally, the altitude settings can be adjusted which let you change the computer’s decompression calculations. The display information can be switched between Fahrenheit and Celsius, as well as metric or imperial.

Alarms

There are many things to keep track of when diving, and beginners often lose track of them due to nerves or excitement. With the Zoop Novo, the numerous audible alarms will let the diver know if important limits are passed or reached. Don’t worry, the computer won’t be beeping at you every two minutes.

To indicate low or high priority, the Zoop Novo uses different tones to distinguish between them. For example, high priority alarms will start sounding if the current depth is too deep for the gas mix you are using, if you’re ascending too quickly, or if the decompression ceiling depth is exceeded.

Whether one is freediving or SCUBA diving, the low priority alarm will trigger when the defined maximum depth is reached.

Logbook Memory

Never lose the data from your past dives thanks to the Suunto Zoop Novo’s massive logbook memory which can store 140 hours of data (roughly 100 dives). This gives you ample time to upload that data to a computer before the information is lost. However, in freediving mode the logbook memory can only record the last 35 hours.

Unfortunately, the Suunto Zoop Novo does not have wireless connectivity, so if you want to transfer the data to your Mac or PC you will need to purchase a USB cable separately. The software that transfers the data is free to download, however.

Decompression Model

The Suunto Zoop Novo uses a proprietary RBGM model which was developed in collaboration with Dr. Bruce Wienke. What makes this decompression algorithm stand out is how it can adapt its calculations by monitoring repetitive dives, short surface intervals, reverse profiling, and multi-day diving.

Another thing that stood out to us is how the Suunto RGBM makes use of a full continuous decompression if the diver has exceeded the no-decompression limit. What this means is instead of making numerous stops at fixed depths, the Zoop Novo will calculate in real-time the rate and ceiling depth so that you can continuously ascend.

Furthermore, if you have exceeded the NDL, the algorithm will extend your surface intervals so that you get enough time to recover before the next dive. This computer is intended to be used on planned decompression dives. If this is your intention, then the best option is to put the Zoop Novo into gauge mode and use it as a bottom timer in addition to your dive plan.

Some divers expressed frustration at this dive computer, claiming that it is far too conservative. We feel that it is not a fair criticism, as this watch is intended to be an entry-level watch for beginners, and we feel there is nothing wrong with being conservative. It may get somewhat annoying if your diving partner has a more aggressive computer, but it is better to be safe than sorry.

Overall

The Suunto Zoop was widely regarded as a fantastic entry-level computer, and the Zoop Novo is the newest model that has improved on the original in many ways. It has five diving modes: off, Nitrox, air, gauge, and freediving. It has a built-in dive planner, as well as a full continuous decompression algorithm that was designed in collaboration with Dr. Bruce Wienke.

Never lose track of the time thanks to its timer in air and Nitrox modes, innovative timer for freediving, and audible alarms to remind you if you have reached or passed specific important limits. Never lose your dive data thanks to the Suunto Zoop Novo’s massive logbook memory which will store your last 100 dives (~140 hours of diving), giving you plenty of time to upload that data to a computer before it gets overwritten.

After using the Suunto Zoop Novo, we feel it is one of the top choices for a dive computer under $500. It has all of the basic functionality for casual and recreation SCUBA divers. It may not have the fancy features like gas switching or an algorithm for the most hardcore of tech divers, but what it does offer you is a easy and safe way to dive while logging all of that important data. For a highly durable, reasonably priced and super intuitive dive computer, the Suunto Zoop Novo is one of the greats.

Pros:

  • Large, clear display with backlight.
  • Intuitive menu which can be navigated with its four ergonomically placed buttons.
  • Attractive price point.
  • Very sturdy and can withstand rough conditions.
  • Personal dive profiles let you adjust the algorithm to be even more conservative.
  • Long-lasting battery that can be replaced by the user.

Cons:

  • Due to its large size, this dive computer probably won’t be worn as a wristwatch for daily use.
  • USB cable must be purchased separately.
  • No digital compass.
  • User manual is sparse in information, however a quick online search will yield the answers you want.

You can read a more in-depth review of the Suunto Zoop Novo here.

Cressi Giotto

Yet another offering from Cressi, the Giotto is a dive watch catered to beginners to medium-experienced divers. It is a large wrist or console-mounted dive computer that provides ample screen real-estate to display all of the critical information you need to know at a glance.

Navigating the interface is relatively straightforward and intuitive thanks to its three buttons. For the features that it provides, the Cressi Giotto is priced competitively with other entry-level dive computers.

Design

One of the first things you will notice about the Cressi Giotto is the clean interface that displays information in a concise manner with minimal confusing abbreviations. The body of the device is shaped like a traditional wristwatch, but due to its size it can’t be considered as such.

Some beginner divers make the mistake of thinking that the more compact a dive computer is, the better. That’s not necessarily true because you need to be able to easily see the information on the dive computer. Due to the Giotto’s size, parsing the information at a glance is very easy to do.

Capabilities

The Cressi Giotto has three different diving modes: Nitrox, air, and gauge. It is a wrist-mounted diving computer that can also come two other versions, including one with a compass or a mini pressure gauge. Due to its size, you probably won’t be using it as a wristwatch outside of diving.

The large display adds bulk, but also makes it easy for divers to see critical data at a glance. In terms of presentation, the data is sectioned and the most important information is displayed with a bigger, bolded text size.

One of the things displayed on the screen is the battery level. Once it runs out, the battery can be replaced by the user without needing to bring it to a service center and paying an expensive fee.

Navigating through the menu is done through three large buttons at the bottom. Pressing the buttons may get a little tricky if thick gloves are worn, but it is still possible due to the spacing of the buttons.

Compared to dive computers with only a single button, using three buttons to navigate the interface is much smoother in comparison. For instance, you don’t have to go through every single menu just to reach the one you want. With the forward and back buttons on the Cressi Giotto, you can easily switch between menus.

Safety is of utmost importance, and it is the reason why dive computers are used when SCUBA diving. Thus, the Giotto has many audible and visual warnings to indicate when a safety violation has occurred.

The alarm will trigger when certain conditions have been met, such as:

  • Maximum depth.
  • Dive time.
  • High rate of ascent.
  • CNS Toxicity.
  • High ppO2.
  • Decompression depth, air, and Nitrox warnings.
  • Deep stop warning.

Technical Capabilities

The Cressi Giotto can handle oxygen levels between 21%-99% in Nitrox mode. It can monitor and switch between two different gas mixes. The ppO2 limits for this computer can be set between 1.2 and 1.6 bars.

Next, the maximum operating depth for this computer is 120m (394ft). If you plan on diving at higher altitudes, you can adjust the altitude levels up to 3,700m (12,139ft) from four different altitude settings.

The Cressi Giotto runs on Cressi’s own modified RGBM algorithm, which is based on the Haldane model and adapted to their needs. We found the algorithm to be quite liberal, but thankfully you can adjust the conservatism levels if you want to err on the side of caution. There are three conservatism levels to select from, but by default the computer is just running the Cressi model with no safety factor applied.

Additionally, the Cressi Giotto has a dedicated display to highly the oxygen toxicity level for the central nervous system (CNS). This display takes into consideration the diver’s exposure time to partial oxygen pressure and the resulting toxicity level of oxygen is displayed in real-time as a graph on the screen.

Dive Log and Connectivity

Capable of storing up to 70 hours of dive data (roughly 60 dives) with a constant sampling rate of 20 seconds, the Cressi Giotto can hold a respectable amount of dive data. You can view the data on the device itself, but for a more in-depth overview, you will need to transfer the dive log to a computer.

Unfortunately, there is no wireless connectivity, so you must purchase a USB connector separately. The software needed to analyze the detailed dive information is included with the dive computer.

Mission Functionality

Like many entry-level dive computers, the Cressi Giotto lacks a built-in compass and air integration, both of which are available when you purchase a console. Since these are premium features, most dive computers in this range will not have these features and you should expect to pay more to get them.

With that said, most casual divers don’t need these functions and the Cressi Giotto already provides a set of features that is sufficient for recreational diving.

Overall

The Giotto is yet another excellent offering from Cressi for beginner to intermediate recreational divers. This dive computer is designed by one of the trusted brands in the SCUBA diving gear community, and gives you all of the basic features to get you started.

There’s lots to like about it. The display is sharp and makes it easy to parse the data at a glance to get the essential information you need. With its three buttons, navigating the menus is super easy and convenient. You can switch between three dive modes: air, Nitrox, and gauge. Furthermore, you can switch between two Nitrox mixes, as well as in the middle of a dive.

The functionality provided by the Cressi Grotto makes it a solid choice at a desirable price point. Divers who are just getting started with SCUBA, and even intermediate divers can use it and grow with it.

While it doesn’t have advanced functionality like air integration, most divers won’t need it in the first place. Plus, the lack of air integration is probably what’s keeping the price low. If you are on a budget and want a solid dive computer that can do all of the basics from a trusted brand, then the Cressi Giotto is for you.

Pros:

  • Large display that is sharp and easy to read, with three buttons to navigate the interface.
  • Dive log memory that stores the data of the past 60 dives (70 hours)
  • Maximum operating depth of 120m (393ft).
  • Complete reset mode that is perfect for any establishment that rents out dive computers.
  • Cressi’s own modified RGBM algorithm.
  • Easy to replace Lithium battery, no need to send it to a service center.

Cons:

  • Too large to be worn as a wristwatch.
  • No air integration.

Read our in-depth review of the Cressi Giotto here.

Atmos Mission One

Atmos Mission One Dive Computer, Black
  • IOS Smart Watch
  • Dive Computer
  • 4 Modes: Air|Nitrox|Freedive|Gauge

This new dive computer from Taiwan-based manufacturer Atmos provides an impressive suite of features that you’d expect to find in high-end models at an affordable price point. What makes this a top choice out of all of its competitors? Almost everything.

First, the Atmos Mission One has an incredible display for its price. The screen is high contrast, 1.2” with a resolution of 240×240 pixels and displays colors. To get a better screen than this, expect to pay at least triple the price for something like the Shearwater Teric, but instead you can get the Mission One for under $500.

Second, the Atmos Mission also comes with a digital compass and dive planning. Once again, these are premium features that you wouldn’t normally find in this price range. Furthermore, it also supports Nitrox, has audible and visual alarms, and has freediving and gauge modes.

Algorithm

The Atmos Mission One runs the Buhlmann ZHL-16c algorithm which is one of the best algorithms out there because it is well-tested, not proprietary, and easy to understand. What makes the Mission One stand out is how adjustable its conservation factor is using gradient factors.

For casual divers, just set the GF hi value to around 70 for conservative dives, or if you’re feeling adventurous, set it to 95 for an aggressive dive profile (95 is akin to the DSAT algorithm).

Since this computer gives you the freedom to customize, it means divers can also change their GF lo to a higher value like 50-60, which changes their first decompression stop to be much shallower. Many recreational diver computers hard code these values in, and if the GF lo is in the 30 range it leads to “deep stops.”

Pros:

  • High contrast, 1.2” color screen and 240×240 pixel resolution; these are premium features that are typically only available in higher end dive computers.
  • Packed with features like a digital compass and dive planning and more.
  • Small profile for less drag – watch style instead of puck style.
  • Runs the Buhlmann ZHL-16c algorithm which is one of the best there is.
  • Features a comprehensive watch mode so you can wear it out of the water.

Cons:

  • No air integration but which sub-$500 dive computer does? Plus it already has so many premium features you can hardly complain.
  • Since it is Taiwan-based, not many manufacturers in the USA carry it though it can be purchased online.
  • Relatively new company to the dive industry, we shall see if their quality keeps up.

Read our in-depth review of the Atmos Mission One here.

Mares Puck Pro/Plus

Mares Puck Pro Plus Wrist Dive Computer, All Black (414135-BKBK)
  • Super Intuitive, Easy-to-Use, Full-Featured RGBM Nitrox Computer, Larger-Display in Slimmer-Design, Upgradeable Firmware & Multi-Gas Capability.
  • Precision Stopwatch, Special Function Modes Air, Nitrox & Bottom Time, , Durable Metal Button, Upgraded Interface, Precautionary Programs Setting,...
  • Plan Mode, Backlighting, Log Book, 3-Level Salinity, Fresh Water Setting, Sea Water Setting, Aquarium Salinity Setting, Residual Nitrogen Memory...

The Mares Puck Pro is a reliable and compact dive computer with numerous useful features at a low price. It has a large interface that can be navigated with just a single button, whether it is to seamlessly switch between the three diving modes (Air, Nitrox, and Gauge) or to adjust the algorithm settings.

This dive computer comes included with features that many entry levels typically don’t have, such as a stopwatch, calendar, and capability to adjust altitude. The Puck Pro has a maximum depth of 150m (492ft), which is a large enough distance for most divers.

Record up to 36 hours of dive data which can be uploaded to a computer to be analyzed further. However, you will need to purchase a USB separately in order to do so. The next model up, the Mares Puck Pro Plus features wireless Bluetooth capability so that you can send the data to your computer or smartphone.

Another great feature is this ascent rate monitor which will warn you if you are going up too quickly. Prevent safety violations by getting a reminder with its alarms regarding not only the ascent rate, but also if the battery is low, a decompression stop is missed, or if there is high PPO2 readings.

Overall, the Mares Puck Pro price is a solid dive watch for the price. Furthermore, it is a product from Mares, a trusted manufacturer of diving equipment and should be on everybody’s list of budget entry-level dive computers.

Pros:

  • Large interface that has been clearly sectioned to provide data in a clear and concise manner.
  • Three diving modes: Air, Nitrox, and Gauge.
  • Capable of keeping a dive log of the last 36 hours of diving.
  • Generous maximum depth of 150m (492ft).

Cons:

  • Need to purchase a USB cable separately in order to access data. The next model up, the Mares Puck Pro Plus, solves this with Bluetooth capability.

Read our in-depth review of the Mares Puck Pro Plus here.

Aqua Lung i200c

Aqua Lung I200c Wrist Dive Computer Dark Charcoal
110 Reviews
Aqua Lung I200c Wrist Dive Computer Dark Charcoal
  • 4 operating modes. Air, Nitrox, Gauge (with run timer), and Free Dive (tracks calculations to allow unrestricted switching between Dive and Free)
  • User-changeable standard battery and data retention. Uses globally available standard batteries found at supermarkets and drugstores. Maintains...
  • High visibility LED alarm light. For additional diving safety

In the past few years, Aqua Lung have manufactured many competitive dive computers in the low to mid price range. The majority of these models were based off of their classic Oceanic Geo and Veo models, which have since been rebranded under the Aqua Lung name since Oceanic’s acquisition.

So is the Aqua Lung i200c literally just a rebranded watch, or is there more to it than that? In our opinion, it has made some big improvements and it hits the sweet spot when it comes to price and features.

What’s new? Well, compared to older models, this one comes with bluetooth connectivity. As a result, you do not have to separately purchase a USB cable just to get the data from your watch to your computer. Many companies charge a ridiculous price for their USB cables because they know that divers need access to this data.

The Aqua Lung i200c has 4 diving modes: Air, Nitrox, Gauge (with run timer), and Free Dive which tracks calculations to allow seamless and unrestricted switching between Dive and Free. It can handle two gas mixes with up to 100% oxygen.

Pros:

  • Based off of the Oceanic Geo 2.0, an already acclaimed dive watch.
  • Wireless Bluetooth connectivity lets you transfer data to your computer and smartphone without needing to purchase a separate, expensive USB cable.
  • Z+ algorithm is decent, though a bit on the conservative side.
  • Dual gas Nitrox mode up to 100% oxygen.
  • 4 physical buttons to make navigating the interface very convenient.

Cons:

  • The LCD screen is starting to feel dated, with many cheaper models having a comparable screen.
  • Battery can only be serviced by factory.
  • No air integration.
  • Even with the bluetooth technology, we feel that their listing price is a bit steep, though it still falls under a “budget” computer.

Read our in-depth review of the Aqua Lung i200C here.

Mares Quad

Mares Quad Computer (Black) (414134-BKBK)
  • Easy to Use: The four button user interface let you navigate forwards and backwards and in and out of the menu structure to adjust settings and...
  • Three dive modes make the Quad easy to use with minimal complications, Air, Nitrox and Bottom Timer mode is all you need for recreational diving and...
  • Modes: Air, Nitrox, Bottom Timer

Yet another dive computer from Mares, the Mares Quad makes it onto this list because it has a strong advantage in usability compared to the other products in this price range.

Most dive computers taut only their dive features. While the Mares Quad doesn’t lack in that department, Mares put special attention into the large screen with four physical buttons for unmatched usability. Most other budget computers only have one or two buttons and a tiny screen. That makes navigating and looking at the data more cumbersome than it ought to be.

With the Mares Quad, you can get the info you need at a glance, and you can navigate the interface to change the settings easily thanks to its numerous buttons. Despite looking like it, the Mares Quad is not bulky or awkward to wear and you will learn how to use the menus in under 5 minutes.

As for features, it has three diving modes: Air, Nitrox, and Bottom timer, with a battery that can last approximately 200-300 dives before replacing. It uses the RGBM Mares-Wienke algorithm and has a maximum depth display of 150m (492ft.)

Pros:

  • Large screen with four physical buttons makes navigating the menus a breeze.
  • Readability is further increased with sectioned information and intelligent placement of data.
  • Has a large maximum depth display of 150m (492ft)
  • Has a decompression dive planner that can be easily adjusted.
  • Long battery life that can be replaced on your own.

Cons:

  • Basic LCD screen.
  • No air integration.
  • RGBM algorithm is slightly dated.

Best Dive Computer Under $500 Buying Guide

best budget dive computer

When you are shopping in this price range, you can only get entry-level dive computers with only basic functionality that are reliable enough to keep you safe during a dive. As for the specific features, here is what to expect.

RGBM Algorithm with Adjustments

Basically every dive computer manufacturer has their own Reduced gradient bubble model (RGBM) algorithm that continuously calculates your dive data at different sampling rates.

With these calculations, the dive watch can determine how much time you have left underwater based on how quickly the oxygen in the tank is being used, whether you are ascending too fast, your max dive depth, current depth and other useful information.

If your diving buddy has a dive computer from a different manufacturer, you can expect the dive calculations to be different, so rely on your own dive computer.

Most algorithms can have the conservatism of their calculations be adjusted so that it is more conservative. This ultimately provides you with a greater safety margin and peace of mind when diving.

Gas Mixes

Dive computers under $500 will have the capability of having one Nitrox mix and support oxygen levels up to 50%.

Since you’re looking for a “budget” dive computer, you are most likely either a beginner or recreational diver and managing one gas mix is usually enough. In fact, if you are only a casual SCUBA diver, a single gas mix may cover you for a few years or maybe even a lifetime.

Most newer and higher end models can handle up to two gas mixes. Again, depending on how much of an enthusiast you are, this may not be an important feature for you. For recreational divers, it is generally a non-issue.

Audible and Visual Alarms

You can expect all dive computers within this price bracket to provide audible and visual alarms to alert you of a possible danger. You can expect the following to trigger an alarm:

  • Dive time exceeded.
  • High rate of ascent.
  • Maximum depth violation.
  • Missing a decompression stop.
  • High pO2.

Beginners are the most likely to make these mistakes, and thankfully all dive computers have alarms that alert the diver of any issues.

Dive Log

Memory is critical, and you can expect even dive computers under $500 to be able to store the data of at least the last 20 dives. In fact, some models have such impressive memory, they can record over 120+ hours of data, or roughly 75 dives.

Generally, the dive data will be sampled at a fixed rate. Some models allow you to adjust this rate, for example you can potentially set it to record data at 10, 20, 30, or 60 second intervals.

USB or Wireless Connectivity to Computer

Unfortunately, while most dive computers on their own may be less than $500, some require you to purchase their USB and software separately. Doing so may potentially increase the price to around or over $500.

However, some may allow you to use Bluetooth to wireless send the data to your smartphone or computer. Before purchasing a dive watch, look very carefully at how the data can be accessed so that you don’t unexpectedly have to pay extra for a USB cable and software.

Missing Features

Alas, it would be great if you could get the best dive watch under $500 with all of the shiny bells and whistles, however at this price range you might be missing some features. Once again, if you are a recreational diver the missing features may not be of much concern to you since you may never need to use them anyways.

Dive Planner

Even though dive computers at this price point won’t come with a dive planner, you can upload the dive data to your computer and make dive plans on the computer.

Air Integration

It is highly unlikely that you will find a dive computer with air integration at this price. If you’re patient and wait for a good deal, you may find one on sale that is capable of air integration, but you probably won’t find a dive watch with an air transmitter included.

Digital Compass

If you want an integrated digital compass, it’s something that is available in the next price range above. Generally, once you start looking at dive computers in the $800-$1000 price range, you will start to see digital compasses being the norm as part of their main features.

Conclusion

SCUBA equipment is expensive, and dive computers are no exception. With that said, there is a large selection of excellent dive computers under $500, and the best ones will provide all of the basic features that will keep you safe as you’re diving underwater. As dive computer technology improves, you can even start to see features that were previously reserved for high-end dive models start appearing in entry-level computers.

Which dive computer you select depends on how you plan to dive and your personal preferences in terms of its style and usability. Are you fine with wearing an oversized computer, or do you prefer to wear a watch-sized model which can also be worn as a wristwatch in your daily life?

There are trade-offs for each style. A large display makes it easier to read the critical information while in poor-visibility conditions. The large size also makes battery replacement much easier. On the other hand, watch-sized devices often need to be sent to a service center for battery replacement, and it is harder to read the display.

Furthermore, do your due diligence and actually look at the technical capabilities of each dive computer. Yes, popular ones from trusted brands are relatively comparable in terms of numbers and they should cover all of the basic features. But it is your duty to what exactly its maximum operational depth is, for example, or what kind of decompression algorithm it uses.

Remember to also check its conservatism settings, because the whole point of using a dive computer is to make diving safer, so being able to adjust the safety settings is crucial. If a dive computer from a trusted brand meets all of your requirements and it is under $500, then buying it should be a safe bet.

Best Dive Computers for Beginners Review

With so many brands on the market across a wide spectrum of price ranges, it can be daunting to find the best dive computer for beginners. What kinds of specs and features should you be looking for? Which ones are essential, and which ones are just fluff?

Typically, the best dive computers for beginners should provide a good user experience, meaning it is easy to use with a clear interface, has just the right amount of features, and is available at an affordable price. Don’t be tempted by PDCs with impressive specs and endless features that only experienced divers would care about.

In this article, we have narrowed down the massive list of available options and honed in on the best beginner dive computers with an emphasis on affordability and ease of use. We have also written a buyer’s guide detailing many popular features such as automatic activation, air integration, dive Nitrox, etc., so that you can do some research on your own if you’d like. Without any further ado, let’s head on to the review.

Our Top Picks:

Cressi Leonardo, black/grey

Best Dive Computers for Beginners Review

Cressi Leonardo Underwater Diving Computer

Cressi Leonardo, black/grey
3,020 Reviews
Cressi Leonardo, black/grey
  • A single button Dive Computer makes it effortless to set Air, Nitrox and Gauge modes. Ideal for beginners in Scuba Diving. It is easy to use and easy...
  • FO2 adjustable between 21% and 50%. PO2 adjustable between 1.2 bar and 1.6 bar. CNS oxygen toxicity graphic indicator.
  • Three levels of user adjustable conservatism. Visual and distinct, easy-to-hear audible alarms

The Cressi Leonardo is a wrist-mounted dive computer that caters to beginner divers. It’s quite bulky but its size makes it easy to read the display and navigation can be done through a single button on the device. Despite its affordable price, it is considered to be a high-quality and reliable piece of equipment by thousands of SCUBA divers.

Features

This dive computer comes with many useful features such as air, gauge, and Nitrox modes, a backlight for night/low-visibility dives, alarms, large digits for clear reading, and easy access to the on/off button. With that said, it is an entry-level computer so it is missing some features that can be found in higher-end dive watches.

Not only will this dive computer provide accurate real-time readings of your dive times, ascent rate, decompression status, and depth during your dive, but it has been designed to be easy to read thanks to the backlit display and large digits. Visibility is often an issue the deeper you go, so being able to safely monitor your data is critical.

Additionally, the Cressi Leonardo comes with a data reset feature which is ideal for rental companies whose primary customers are beginners. For those who are worried they might accidentally wipe their own personal data, it’s quite difficult to stumble into this section and delete your data without following the manual, so you would have to be intentionally trying to wipe it.

Another great feature that the Cressi Leonardo has is its visual and audible automatic warnings to warn you if you are ascending too quickly or if you are running out of oxygen. The watch visually represents this by using a stack of arrows to indicate something is wrong, and the audible alarms are loud enough that you can hear it underwater.

Technical Capabilities

The Cressi Leonardo is designed to be fully operational up to a maximum of 120m (393 feet) below the surface. Its dive algorithm is based on Cressi’s own Reduced Gradient Bubble Model (RBGM) which is based on the Haldane and Wienke algorithm.

This algorithm can accurately calculate your decompression limits, even if you do numerous dives within a short span of time. The Cressi Leonardo will continuously monitor your body’s Nitrogen absorption and release.

Furthermore, it takes into account how much inert gasses and other mixtures that you can use. You can even further adjust the way the algorithm calculates the data for a safer dive experience. For instance, the nitro levels can be set for oxygen levels between 21-50%, and the PO2 limits can be changed to 1.2-1.6 bars.

Dive Log and Connectivity

The built-in dive logs keep track of the last 60 dives (~75 hours). Furthermore, the data is sampled every 20 seconds during a dive for the most accurate record of your past dives. You can then transfer this log to your PC, however you need to purchase a separate device in order to do so. Once the data is on your PC, you can plan future dives by running dive simulations.

Missing Functionality

Remember that the Cressi Leonardo is an entry-level dive computer, therefore it does not have all of the bells and whistles that a more expensive model has. For example, it does not have a compass nor does have air integration.

With that said, for beginner divers air integration is not a priority. However, as your skills and experiences grow, you may eventually want to upgrade to a dive computer with more functionality.

Overall

The Cressi Leonardo is possibly the best dive computer for beginners by providing all of the basic features at an affordable price. It is well built and designed by a reputable company. It does not have all of the shiny new features, such as air integration, that higher end models have. However, for beginners or those who want a reliable back-up watch, then this is a top tier choice.

Pros:

  • Large, easy-to-read display with simple one-button navigation.
  • Air, Nitrox, and Gauge modes.
  • Dive log can keep track of 60 dives (75 hours).
  • Adjustable safety factor settings.
  • Data can be completely reset after each dive, ideal for dive shops.

Cons:

  • No compass or air integration.
  • Backlight could be brighter.
  • Bulky.

Read our full review of the Cressi Leonardo here.

Suunto Zoop Novo

SUUNTO Zoop Novo Wrist Dive Computer, Black, with USB
  • Operating modes: air, nitrox, gauge and freedom modes
  • Programmable for 21% to 50% oxygen mixtures
  • Imperial or metric programmable, decompression stop data, audible alarms

Yet another excellent contender for best dive computer for beginners is the Suunto Zoop Novo. Like the Cressi Leonardo, it is also an oversized wrist watch designed to have a large display screen so that the diver has no difficulties reading the information at a glance, even in low-visibility conditions.

Navigation the interface is done through the 4 buttons located in the front. The Suunto Zoop Novo also comes in a console-mounted version if you prefer that over the wrist mounted style.

Features

The Suunto Zoop Novo can switch between five different dive modes: Air, Nitro, Gauge, Freedive, and Off mode.

Navigating the interface is simple, even for beginner divers who have never used a dive watch before. Suunto have taken great care to place the buttons in ergonomic positions so that they are easy to reach and press, even if thick gloves are worn. With four separate buttons, navigating is easier than trying to step through each screen with only a single button compared to other models.

The Suunto Zoop Novo has audible and visual warnings for various conditions like dive time, max depth, high pO2, deep stop and decompression ceiling violations, and ascent rate. With that said, the screen only displays black and white, so the visible alarm is not as prominent compared to models with a color display.

Technical Capabilities

Let’s talk about nitty-gritty numbers. The Suunto Zoop Novo can handle oxygen levels between 21%-50% in Nitrox mode. The pO2 limits for this dive watch can be adjusted between 1.2 and 1.6 bars. The maximum safe dive depth is 80m (262ft), with altitude adjustment settings up to 3,000m (9,843ft).

Algorithm

The Suunto Zoop Novo’s algorithm is Suunto’s own which was developed in cooperation with Dr. Bruce Wienke, the creator of the Reduced Gradient Bubble Model (RGBM) that is used in many dive watches today.

What’s great about this algorithm is its ability to allow the diver to tweak the conservatism of the algorithm for a safer dive experience. Just change the dive profile to conservative and enjoy an extra level of safety.

Off Mode

Another nifty feature is Off Mode. Activating it will prevent the dive computer from changing into dive mode just because you are in the water. This feature saves battery life if you are in the water but don’t want it running at full power.

Diving Log and Connectivity

The Zoop Novo has an immense storage capacity that can store the last 140 hours of data, which is equivalent to roughly 75 dives. You can set the sampling time to be either 10, 20, 30, or 60 seconds which lets it maintain a detailed logbook of your past dives.

Unfortunately, if you want to access this data on a desktop computer, you will need to purchase a USB connector and software for both PC and MAC. You may be able to purchase the device with a USB cable together.

Seeing as how you need a USB cable, it should go without saying that this device does not have Bluetooth connectivity. In order to extract data from the dive computer, you need the USB cable to connect it to your computer.

Once connected, the data can be uploaded to the Suunto Movescount portal. You will be able to see all of the exercise data, and you can also add photos and videos to your dive data from this portal.

Missing Features

Since this article focuses on dive computers for beginners, you should expect these entry-level products to be missing some features. Much like the Cressi Leonardo, the Suunto Zoop Novo is also missing a compass and air integration capability. If you are looking for a device with air integration, consider getting the Suunto Vyper Novo instead. Recreational divers won’t need this feature, unlike veteran divers.

Overall

The functionality offered by the Suunto Zoop Novo is about what you’d expect from an entry-level dive computer. It has all of the basic features but no compass or air integration. Furthermore, there isn’t the option to add air integration either.

As such, it is not ideal for divers who are trying to hone their skills and are planning to switch to air integration in the future. With that said, recreational divers either don’t need to worry about this feature, or it may be years until they need it and by then they can just upgrade to a new device entirely.

With the 5 dive modes, 4 easy-to-access buttons, and over 140 hours (75 dives) of data storage, the Suunto Zoop Novo is a fantastic dive computer for beginners.

Pros:

  • Easy to navigate the interface thanks to its 4 ergonomically placed buttons.
  • Features Suunto’s own RBGM algorithm, made in collaboration with Dr. Bruce Wienke.
  • Four dive modes: Air, Nitrox, Freediving, Gauge, and a special Off Mode.
  • Can record the last 140 hours (75 dives) of data, with a sampling rate of 10, 20, 30, and 60 seconds.
  • Excellent entry-level device for beginners.

Cons:

  • No compass.
  • No air integration.

Check out our in-depth review of the Suunto Zoop Novo here.

Mares Puck Pro Plus Dive Computer

Mares Puck Pro Plus Wrist Dive Computer, All Black (414135-BKBK)
  • Super Intuitive, Easy-to-Use, Full-Featured RGBM Nitrox Computer, Larger-Display in Slimmer-Design, Upgradeable Firmware & Multi-Gas Capability.
  • Precision Stopwatch, Special Function Modes Air, Nitrox & Bottom Time, , Durable Metal Button, Upgraded Interface, Precautionary Programs Setting,...
  • Plan Mode, Backlighting, Log Book, 3-Level Salinity, Fresh Water Setting, Sea Water Setting, Aquarium Salinity Setting, Residual Nitrogen Memory...

The Mares Puck Pro Plus is an updated version of its acclaimed Puck Pro dive watch, which was already considered to be one of the best entry-level diving computers for its time. With their refreshed Puck Pro Plus, Mares has made a good product even better.

To start, navigation on this device is handed via an intuitive single button. Next, the Puck Pro Plus has been improved so that it can connect to your computer or smartphone wirelessly with a Bluetooth clip connector. No more annoying USB cables are needed to access the dive log on your other devices.

More upgrades have been made on the Pro Plus in regards to connectivity, such as firmware updates and easier data exchange between your smartphone. Even personal maintenance of the device has been simplified, with the battery being easy to swap out yourself. No more sending it to a service center or authorized dealer if you’re willing to do it yourself.

Features

The Mares Puck Pro Plus provides an intuitive, highly legible display with split sections. By segmenting the information into three lines, it allows the device to display all of the critical information on its large display.

There are three diving modes to choose from: Air, Nitrox, and Gauge.

Furthermore, it can deal with different gas mixes that you can easily switch between during a dive with oxygen levels up to 99%. Avoid safety violations with its alarms which trigger when the ascent rate is too high, battery is low, decompression stop is missed or ignored, and there is high PPO2 and high CNS (over 100%).

Technical Specifications

Let’s get down to the nitty-gritty. The Mares Puck Pro Plus has a maximum depth of 150m (492ft). Its onboard dive log size records the last 36 hours with a sampling rate of 5 seconds. It has a Nitrox setting up to 99% oxygen, and can switch between metric and imperial units.

Overall

The information of each dive that is recorded by dive computers are so important, and it can be a pain in the butt having to buy a USB cable and software separately just to access your data. For this reason, the Bluetooth wireless connectivity of the Mares Puck Pro Plus is a godsend and is honestly worth it just for that feature alone.

If you want quick access to your data just send it to your smartphone. No more having to wait until you return from your vacation, or lugging around a laptop just so you can see your data. Furthermore, you don’t have to worry about your dive log getting overwritten before you can upload it to a computer if you can send it wirelessly long before that happens.

Of course, it has all of the features you’d expect from an entry-level dive computer as well. The updated design of the Puck Pro Plus makes it look more sophisticated and there are various colors to choose from. Overall, the Mares Puck Pro Plus can be your intuitive decompression calculator for years to come whether you dive Air or Nitrox.

Pros:

  • Bluetooth connectivity allows you to wirelessly send dive data to your smartphone or computer without a USB cable. This feature alone is worth getting the dive computer for.
  • Three dive modes: Air, Nitrox, and Gauge.
  • Usable up to 150m (492ft) below the surface.
  • Logs the last 36 hours of diving data with a 5 second sampling rate.

Cons:

  • If you already have the older Mares Puck Pro, there may not be enough new features to make it worth an upgrade.

Check out our comprehensive review of the Mares Puck Pro here.

Best Dive Computers for Beginners Buyer’s Guide

scuba with school of fish

If you’re not aware of what a Personal Dive Computer (PDC) is and why it is so useful, it is a device designed for SCUBA divers that tracks the depth and time of a dive according to a pre-programmed algorithm.

Today, dive computers have become so prevalent and accepted that it is considered as important a piece of equipment as your regulator. Its popularity is not without merit; it is constantly monitoring your dive and displaying a safe dive profile and ascent rate to help prevent decompression sickness.

While it is not compulsory for a SCUBA diver to have a dive computer, they are an essential piece of equipment if you plan on diving frequently. This is because the information that you would normally calculate by using a dive table can be done with more accuracy and detail using a dive computer.

While dive tables are a great tool to help divers figure out how long they are able to stay underwater at specific depths and if a decompression stop is necessary, they are slowly becoming obsolete. Before dive computers were introduced to the public, knowing how to read dive tables was an essential skill for frequent divers and is taught as part of any diving course.

However, to the untrained eye, decompression tables are confusing and take a fair bit of practice until one becomes proficient at reading them. With that said, to err is human, and even professional divers make mistakes sometimes in their calculations.

Thankfully, dive computers can do all of these calculations for you so that there is no chance of a mistake when calculating diving periods, safe diving depths, and decompression stops. SCUBA diving computers can track precisely the time spent underwater and the depth in real-time.

Due to the constantly changing information, the dive computer can recalculate as you are moving, while a dive chart is static and cannot be adjusted in real-time. With the calculations that a PDC makes, you can decide on-the-fly whether you would like to spend more or less time at depth.

With the information provided by a dive chart, any sort of unforeseen circumstances can lead to longer decompression stops and less time spent at depth. There’s so much more that a dive computer can do, and you can read about the features in the next section.

Dive Computer Basic Features

All dive computers will display four crucial pieces of information that all SCUBA divers must keep track of throughout their dive. They are:

  1. Current Depth of the dive.
  2. Maximum Depth reached for that dive.
  3. NDL/No Stop Time: The time available for a specific depth without needing to go to a decompression stop during ascent.
  4. Overall Dive Time: The amount of time spent underwater measured from descent to the beginning of the ascent to the surface.

These features are available in all dive computers so if they are all that you need, then you can go ahead and invest in a budget one. Higher end models come with numerous advanced features that may not be available in other models.

Dive Computer Additional Features

The higher end models come with numerous features that will make the diving experience a lot smoother. For instance, the Suunto Eon Steel dive computer comes with a pressure sensor that instantaneously sends the information wirelessly to the main device when it is held close to the tank. Here are some common features you can expect to find in higher-end PDCs.

Ascent Rate Monitors and Warnings

When one is ascending, one must make sure to do so slowly in order to decrease the chances of getting decompression sickness. With that said, it is hard to know exactly how fast or slow one is going even after calculating the optimal speed with a table.

With a PDC, you can completely remove the guesswork by accurately telling you in real-time if you are swimming too fast. Most models even have a warning system built-in to alert you.

Navigation

An important part of a SCUBA diver’s gear is their compass. While you can use an analog compass on your dive gauge, you could also use the integrated digital compass on your dive computer. With this, you will always know which direction you’re headed and how to return to shore or the boat.

You can supplement or even replace your old-fashioned compass with a dive computer. The advantage of this is they can digitally display your information for easier reading, and you don’t even have to keep the instrument perfectly level to get a proper reading.

Air Integration

air integration

SCUBA computers with an Air Time Remaining (ATR) or air integration system provide an additional layer of security. Having air integration removes the need to have a separate pressure gauge.

Knowing how much oxygen is left in the tank is crucial, and the air integration monitor will keep track of this and alert you about how much time left you can safely spend in the water.

This information is calculated by measuring the diver’s air consumption rate, the capacity of the air tank, and computing how much time is left. Since this is done in real-time, any increase or decrease in the consumption rate will get factored in, and the display will be updated.

The PDC can also factor in how the time remaining changes due to turbulent water conditions or at different depths. For instance, in the middle of strong currents or any situation that causes the diver to exert themselves more than usual, the air consumption will most likely increase and the time remaining will change.

While a submersible pressure gauge can track how much air is remaining in the tank, the dive computer does that as well as provide time-related information.

Although air integrated computers are very advanced and thus cost a pretty penny to buy, their prices have come down over the years. Many divers feel that the AI’s other features, such as audible low-air alarms, transmitter connections, quick disconnects, and the main feature justify the higher price tag.

Nitrogen Monitoring

Many dive computers for beginners also track the nitrogen level in your system using a Tissue Loading Meter. A nitrogen monitor is yet another layer of security to help divers avoid decompression sickness. By monitoring how much nitrogen has accumulated in your system, you will know how much time to spend at a decompression stop.

Similar to the ascent rate monitor, the nitrogen monitor can be set as an alarm so that you can receive a warning in case you need it. Keep in mind this is separate from the no-decompression limit.

Dive Nitrox

If you’re a Nitrox diver, this feature is designed specifically for you. Since a different composition is used in the air tanks, there is an increased risk of central nervous system (CNS) oxygen toxicity, tracking the exposure to oxygen is paramount.

Dive computers can calculate how much time one can be continuously exposed to the oxygen while still staying safe. This information is typically displayed as minutes left within a safe time limit. Another way a PDC can display this information is through percentages.

Dive Log

Having the data for each dive is important for keeping track of your progress as a SCUBA diver. Doing it by hand is tedious and error prone. A PDC can track all of this information for you so that you don’t have to do it manually. For example, the Mares Smart Wrist model tracks the data of the last 25 hours, and even features a dive plan mode.

The information logged by the dive computer can be conveniently transferred to a desktop computer where it can be viewed as a digital log. A cable that links the PDC to a desktop is included in the packaging.

Activation

dive computer water activation

Dive computers have two ways they can be activated: manually or with water. Some PDCs require the diver to press a button before heading into the water for information to pop up on the computer’s display.

Many dive computer manufacturers have noticed that divers tend to forget to press the On/Off buttons on their device. To address this issue, some dive computers have been designed so that they activate when one enters the water. This feature ensures that you will always have details of your dive, however this feature increases the computer’s price tag.

Memory

All dive computers provide a dive log function so that you can review your most recent dives. The amount of dives logged depends on the model. Before choosing a computer, make sure it has the memory capacity to keep a log of numerous dives at any given time.

Older models typically only show the most recent dive. Current models generally log the data of the last 10 dives.

Miscellaneous

Some models come with various nifty quality-of-life features, such as the ability to track and record a dive log history, the option to set visual or audible alarms, as well as a backlight for nighttime or low-visibility dives. Color displays are starting to flood the market and it is becoming more commonplace.

Wrist or Console Mount

Modern dive computers come in two varieties: the wrist or console-mounted type.

Wrist Mount

Wrist computers are stand-alone devices that are kept in a boot and connect to the wrist using a bungee or durable watch band. They can be purchased in a small watch style that can be used for everyday wear, or a standard puck size.

The wrist style PDCs are a solid choice for divers that want to update an older console setup or are looking for a way to remove a hose from their current regulator setup. Some wrist mounted dive computers give the option of buying an AI transmitter that lets the device monitor the tank pressure through a wireless link.

Console Mount

Console computers are mounted in the SPG console and typically replace the depth gauge. If it is air integrated, it can replace both the pressure and depth gauges in a typical console setup.

Why Use a SCUBA Computer?

Dive computers are incredibly useful pieces of diving equipment that make the experience safer thanks to its real-time monitoring and accuracy. Simply put, using one will surely extend your bottom time.

As opposed to dive charts that only calculate “square diving profiles” which only take into account your max time and max depth after a dive, a dive computer will calculate data based on actual time and depth of your current dive.

We humans are error-prone, and there’s already so much to keep track of during a dive. For instance, knowing your exact depth underwater without a dive computer keeping track means you have to estimate and you’d probably be off by at least a few meters, if not several.

Wearing a PDC helps you keep track of all kinds of information that you wouldn’t be able to keep track of by yourself in real-time. You can get the precise information regarding nitrogen and oxygen levels, decompression stop times, and how much air is remaining in the tank.

The ability to accurately measure time and depth means dive computers will warn you as you are approaching bottom-time or max NDL. Additionally, it can help time your safety stop and even trigger a warning if you have an excessive ascent rate.

Safety should always be a top priority whether you are diving with a PDC or still using tables. With that said, it is clear that dive computers are the safer option by providing you with extra control over the numerous variables you have to keep track of.

Since a dive computer is constantly updating its data based on real-time variables, you get the benefit of being able to safely stay underwater for longer and enjoy a bit more spontaneity in your dives.

If it is within your budget, you should invest in a dive computer for beginners of your own. There are numerous models each with useful features, and the most important ones have been covered in the previous section.

Lastly, it is up to you to decide which features are the most important for you. You can easily save money if the features you want are available in an entry-level model.

Dive Computer Maintenance

why use a dive computer

Knowing how to maintain your dive computer is important if you want to keep your advanced diving tool in perfect working order. If you’re not sure how to do that, then this section is for you.

After each dive you must give all of your SCUBA gear a thorough rinse with freshwater, including your dive computer. If you were diving in saltwater, this step is even more crucial since salt can harden around the buttons which causes them to get stuck or malfunction.

Always consult the manufacturer’s instructions if you’re unsure of what to do. Most manuals should tell you to soak the computer in freshwater for at least five minutes while pushing the buttons to get rid of any salt build-up.

Once you’ve finished washing the computer, dry it and store it in a protective case in a cool and dry place to keep it safe while not in use.

Depending on which model you purchased, your computer may need to have its battery replaced every one to two years so it won’t suddenly die on you in the middle of a dive. Most dive computers are designed so that the user can easily replace the battery themselves.

Battery kits should come with a replacement battery as well as an O-ring which helps seal the computer and prevent any water leaks even under intense pressure.

Once again, consult the manufacturer’s instructions to safely replace the battery. Otherwise, it can be very easy to damage this delicate piece of equipment. As a beginner SCUBA diver, you might even want to let a certified specialist do it for you the first time so that you can watch and learn.

What Should You Do if Your Computer Dies During a Dive?

The first thing you should do in case anything goes wrong during a dive is to stay calm. Then next thing you should do is alert your dive buddy that your computer is dead and that you want to end the dive. Ascend slowly, safely, and if you still remember any of the information that the computer displayed before it died, then take that into account.

You should not rely on your dive buddy’s computer because they may have a different setup than you. Unless you have a back-up computer, the diving session is effectively over for you. Do not attempt any more dives once you resurface until you have access to a working dive computer.

Dive computers sometimes fail due to leaks in the compartment where the battery is held, from battery failure, or if the battery runs out of juice. If you have a spare dive watch, you can continue diving safely even if your main diving computer is out of commission. It is prudent to bring along a spare battery just in case you encounter battery issues.

Experienced divers will generally change the batteries of their dive computers by themselves. As a beginner, be sure to follow the instructions carefully so that not only can you replace the battery, but prevent further leaks in the future.

Are Dive Computers Ideal for Beginners?

All divers can make good use of a dive computer, particularly beginners. In fact, PADI recommends that all divers should have their own dive computer. If you’re just starting out and only plan on diving recreationally a handful of times a year, you might want to get an entry-level one instead of one with all of the bells and whistles.

The more advanced the dive computer is, the more complicated it is to use particularly if you are just starting out. As dive computers keep on improving, the user experience has thankfully improved. Manufacturers are constantly innovating and developing a display that can be easily understood, operated, and seen even during low-light conditions.

Practice using the dive computer before heading out into the water so that you at least have an idea of how it works. That way, you spend less time fiddling around with it and more time diving. If you plan on getting certified to dive with Nitrox, then you need to find a dive computer with this functionality. You’ll also need to learn how to switch between Nitrox and Air modes as needed.

Best Freediving Weight Belt Buying Guide

Getting the best freediving weight belt is not as easy as it seems. Unfortunately, there is a trap that beginners often fall into when shopping for a freediving weight belt. This mistake will limit your abilities as a freediver by causing you to lose speed and agility while underwater.

Furthermore, it will result in a poor freediving experience and may even result in an emergency in rare cases. How could a freediving weight belt cause so much trouble, you ask? Sure it can, if you buy one made out of the wrong material.

If you are serious about freediving and spearfishing, the only type of weight belts you should invest in are rubber weight belts. Rubber is the ideal material because it can stretch with your diaphragm as you breathe. Other weight belts will simply restrict your airway and prevent you from reaching your potential.

There are many more reasons why you should invest in a rubber freediving weight belt, and in this article we will discuss the best ones and what criteria to consider when shopping for them.

Our Top Picks:

Purpose of a Weight Belt

Before we talk about which type of weight belt is the best, you should know the reason why freedivers even need a weight belt in the first place is to offset the positive buoyancy caused by the neoprene wetsuit and freediving fins.

The neoprene material that freediving wetsuits and fins are made from is filled with air bubbles, making them naturally buoyant (in other words, you will constantly float). As a freediver or SCUBA diver, this means you will be fighting against the positive buoyancy unless you add weights to help you reach neutral buoyancy (you are neither floating or sinking).

There are various weighting systems such as weight vests and neck weights, but the most common setup is using a weight belt with small weights to achieve neutral buoyancy.

Why Use a Rubber Weight Belt?

There are two types of freediving weight belts: nylon and rubber. A weight belt constructed from nylon is lightweight, durable, and affordable. It sounds pretty good, right? However its one major downside is too big of a downside to ignore: it doesn’t stretch. On the other hand, a rubber weight belt stretches as you breathe and move around.

With a nylon weight belt, you will limit your freediving potential by restricting your breathing and impeding your finning technique. During your pre-dive, you won’t be able to inhale as much oxygen and therefore your dives will be much shorter. Unfortunately, the market is littered with nylon freediving weight belts. Avoid them at all costs.

What you should aim to get are rubber weight belts. They have some minor downsides, such as being harder to secure the weights onto them. However, the benefits they provide are too great to pass up if you are a serious freediver. Here’s a few reasons why.

It Doesn’t Restrict Your Breathing

best rubber weight belt

Rubber weight belts will allow you to maximize your pre-dive breath-up so that you can have the most oxygen in order to dive as long as you can without hindrance. And to achieve this, you must be able to inhale deeply into your diaphragm.

By not breathing into your diaphragm, you are not maximizing the amount of oxygen that can fill your lungs. In other words, without this technique all of your dives will be shorter and shallower than they could be. How does the material of the weight belt affect your breathing?

Simple. With a stiff nylon weight belt strapped on, you will not be able to fully inhale into your diaphragm since nylon does not stretch. Think back to the Victorian era when women wore tight corsets, and a nylon weight belt is something like that.

On the other hand, a rubber weight belt does stretch as you inhale. This allows you to maximize the amount of oxygen your lungs can inhale in order to fuel your body for the next dive. Honestly, this reason alone is already more than sufficient to recommend getting a rubber weight belt over a nylon one.

All of these additional reasons are just icing on the cake.

It’s More Comfortable

While in the water you must stay relaxed, calm, and comfortable whether you are freediving, SCUBA diving, or even snorkeling. If you feel uncomfortable, it will distract you, affecting how far you can dive and make it hard to enjoy the sport.

Wearing a weight belt made from something as rigid and inelastic as nylon even for just a few minutes will cause you to feel uncomfortable and restricted. This only gets exacerbated the deeper you dive and the water pressure changes affect you even more.

As things keep going wrong, you may start to feel anxious, and this can be quite dangerous indeed. As you know, stress will elevate your heart rate and cause you to panic. It will cause you to consume your oxygen supplies faster and potentially make mistakes you wouldn’t normally make.

By wearing a weight belt that can compress and stretch comfortably as you dive deeper underwater, a.k.a. a rubber weight belt, you’ll be able to concentrate all of your efforts on conserving oxygen and properly finning in order to reach deeper depths.

It Allows Greater Freedom of Movement

As you’re finning, you may feel your rubber weight belt stretching out to accommodate your waist and hip movements, letting you move with the proper range of motion in order to jet through the water.

On the other hand, a nylon weight belt will dig into your wetsuit and skin with its rigid material. In addition to restricting your breathing, it also limits your movements and slows you down, which is yet another way that it contributes to ruining your freedive.

In order to fin in comfort with perfect technique, you should definitely wear a rubber weight belt as opposed to a nylon weight belt. Now that you know why you should invest in a rubber weight belt, the question is which ones? Below, we will go over our picks for the best rubber weight belts for freediving.

Best Weight Belt for Freediving – Our Top Pick

Riffe Rubber Weight Belt

Riffe Rubber Weight Belt with Buckle
  • Total Load Control: Fully adjustable 54-inch (137cm) long x 2mm thick rubber belt lets you customize the perfect weight amount and distribution up to...
  • Built Strong and Secure: Glass-filled nylon cam-lock buckle paired with an inner ribbed 2-inch wide belt prevents shifting and retains weights...
  • Fast Ditch for Safety: Quick-release lever enables instant detachment of the belt for emergency surfacing situations - just pull for fast ditching.

The Riffe rubber weight belt is one of the top choices currently on the market. It is made from a highly flexible rubber that will accommodate the natural curves of your body which is necessary in order to maximize pre-dive breathing. Furthermore, the belt has a quick-release buckle just in case you need to rapidly return to the surface during an emergency. Let’s go over each feature in more detail.

Stretchable Rubber Material

The high-quality rubber that the Riffe is constructed of is ergonomic, comfy, and feels like you’re wearing a second layer of skin around your midsection. Thanks to how flexible and dynamic it is, you will never feel like your movements or breathing is restricted which contributes to the “second-skin” feeling.

It will bend as you bend. Furthermore, the stretchable, lightweight rubber will ensure that your hydrodynamics are not negatively impacted so that you can jet through the water to set new personal bests.

Quick Release Buckle

You never know when an emergency strikes and you need to surface ASAP. With the help of the cam-lock glass-filled nylon buckle, you can quickly remove the belt in one simple motion.

With just the flick of the hand, you can eject all of your dive weights and swim back without being encumbered. This buckle not only looks stylish, but you can rely on it in a life-or-death situation.

Highly Adjustable

Getting the perfect fit is possible with the Riffe rubber weight belt. Unlike most belt buckles which are constrained by the spacing between each pre-set hole in the belt, the Riffe weight belt does away with this issue completely.

Instead of inserting the buckle tooth through the holes, the Riffe weight belt buckle allows you to fasten it to your exact tightness. You never have to deal with wearing a belt that is either too tight or too loose; you can finally get one that fits just right.

Corrosion and Rust Resistant

For all the flack we’ve given nylon, we have to give credit where it’s due. The nylon buckle of the Riffe weight belt is very durable. Salt won’t wear down the belt’s natural shape or reduce the buckle’s strength. It’s not going to rust either. When you buy a Riffe rubber weight belt, you buy it for life.

Weights Won’t Move (Until You Release Them)

Rubber naturally has a high friction coefficient which keeps the weights from sliding around the belt as you’re diving. What’s more, the belt also has horizontal ribbing to further reduce any movement and act as a second layer of defense to keep the weights secure.

Specifications

The Riffe rubber weight belt is 54” long by 2” wide and has a 20lb weight capacity. In other words, almost everyone reading this can use this. You can even cut the belt down to size if you so choose.

Overall, the Riffe rubber weight belt is a highly affordable, high-quality belt that’ll help you maximize your freediving potential. Furthermore, it is durable and will last you a lifetime. You can get yourself one by clicking here.

As for weights to go with the belt, we recommend this one. They will fit snug and will not shift around as you dive.

Scuba Choice Weight Belt – Best Marseilles Weight Belt

Scuba Choice Spearfishing Free Dive Heavy Duty Rubber Weight Belt with SS Buckle, 53", 1.3-Meter
  • Available size: 53" (1.3M), 61" (1.5M)
  • Rubber belt self-compensates to changes in wetsuit's thickness at different depth
  • Sturdy stainless steel buckle.

If you’re not happy with clasp style buckles, then the Scuba Choice freedive weight belt should be right up your alley. It features a classical weight belt design with the tried and true stainless steel buckle and holes in it.

While it’s easier to open, you have to be careful about the length of the pre-drilled holes in order to make sure that it fits your hips. With its durable yet stretchy material, you can easily fit over 20 pounds on it without sliding around. This stretchy belt will remain secured on your hips and provide you with the neutral buoyancy that you need.

Cressi Elastic Weight Belt – Best Stainless Buckle Belt

Cressi Quick-Release Elastic Belt with Metal Buckle, Black
  • The Premium Elastic Rubber Belt is manufactured with a high stretch rubber to keep your weights comfortably in proper position during ascents and...
  • The quick-release stainless steel buckle provides instinctive and rapid emergency release.
  • The buckle pin passes through, is very strong and is riveted at both ends.

You can’t go wrong with a trusted brand like Cressi. Here, you have an example of a weight belt with a stainless buckle. This offers the same advantages as a plastic buckle weight belt like the Riffe belt above. In addition to that, stainless steel buckles are even more durable and easier to unclip, though slightly more expensive.

What to Look for in a Freediving Weight Belt

Buckles

How do you know if one rubber weight belt is better than another? Start by examining the buckles. There are two types to choose from: the clasp type, or the regular pin-through-hole type that is sometimes referred to as the Marseilles type buckle. Let’s go over their pros and cons.

Clasp Buckles

Clasp buckles are made from glass-filled nylon or stainless steel. They come with quick-release protection, so if you ever find yourself in an emergency you can lift up the clasp and slide the belt off immediately.

The main advantage of clasp buckles are how adjustable they are compared to the pin type. When you find the exact tightness you like, just clamp the buckle down and you’re done. With the pin type, you can end up in an awkward situation where one belt hole is too tight, but the next one up is not tight enough.

Marseilles (Pin) Buckles

Marseilles buckles are more secure and durable than the other types, while still giving you the option of a quick-release switch. The moment you pull on the free end, the spring-loaded pins on these buckles will eject out of the hole and stay open so they won’t get caught on the belt again.

If you choose a belt with a pin style buckle, it is important to look for any reviews mentioning how stretchy the belt is. If it is stretchy enough, you can potentially stretch the belt just enough that it can reach the next hole to ensure a tighter fit. Just make sure you aren’t constricting yourself too much, otherwise you will affect your breath-ups.

Diving Weights

When it comes to diving weights, you can choose between uncoated lead weights or vinyl-coated diving weights. Either one can work, just make sure that they aren’t sliding around in your weight belt even if you don’t have a weight keeper. Dive weights can come in weights between 1lb to 12lbs.

Silicone Weight Belts

Recently, silicone weight belts have entered the market. Though rubber weight belts are still the most popular choice for freedivers, silicone weight belts may soon change that because they have some slight advantages.

For starters, they are stretchier than rubber, which only makes the weight belt fit even better and more comfortably. Furthermore, silicone weight belts are even more durable than the alternatives.

They are resistant to UV rays, salt, chlorine, ozone, and heat. In fact, silicone’s operating temperature range is -60C to +315C, both of which are temperatures you would be unlikely to encounter while freediving. The downside of silicone weight belts is their price, which is why rubber weight belts will probably still remain the recommended choice.

freediving buoy and line

How to Wear a Freedive Belt

A weight belt will afford you no advantages if you wear it improperly. You should wear your freediving weight belt around your hips to ensure your breathing remains unimpeded. Wearing it any higher and you could restrict your airflow.

Another reason to keep the weight belt by your hips is it can seal up the bottom of your wetsuit jacket and prevent water from entering if you are wearing a two-piece wetsuit.

Next, you should be using small weights with your weight belt which allows you to evenly spread the weight for added comfort.

Most freediving weight belts are designed with a “one-size-fits-all” approach. In other words, they are probably too long for you and you are expected to slice off any excess length you don’t need. A mistake beginners often make is they cut the belt too short.

Instead, you should leave a little bit of extra length behind just in case you want to wear a thicker wetsuit in the future. Some brands offer more than one size, but keep in mind when buying: if a belt is too long, you can always cut some length off, but you can’t make a shorter belt longer!

Weight Belt Accessories

Correctly adding weight to your belt is a necessary skill to learn as a freediver if you are committed to improving and reaching your potential. In addition to knowing how much weight you should add, you might want to consider investing in these weight belt keepers.

You should consider looking into getting weight belt D-rings which give you the option to hang small accessories off of (such as a dive knife or torch). They also double as weight keepers (don’t you love it when things work out like that?) so if you want to keep your hands free while diving, give it some thought.

Best Freediving Weight Belt Recap

When selecting a weight belt for freediving, make sure to avoid nylon weight belts at all costs. You should look for rubber or silicone weight belts. Freediving weight belts need to be stretchy and comfortable. If you get one that’s too stiff, it will restrict your diaphragm and your movements, making it impossible for you to perform at your full potential.

With a stiff nylon weight belt, you will ultimately be incapable of freediving for as long, nor will it be as comfortable as a rubber weight belt. You also need to consider how easy the quick-release mechanism is to operate. It should be possible to quickly detach the belt from your body easily with just one hand.

The belt should have enough grip to hold onto the dive weights so that they aren’t sliding around your hips. You can get additional accessories, such as weight keepers or D-rings to hold onto smaller accessories, which can also double as dive weights themselves.

You can cut the belt down to size if it’s too long, however leave some extra length just in case you ever decide to wear it with a thicker wetsuit. When used in conjunction with a freediving line and buoy as well as a dive watch, then you will be diving in the most safe environment possible.

Best Freediving Snorkels Review

Since there are so many snorkels on the market, it can be hard to narrow down the options on the market and find the best freediving snorkel. Thankfully, for freedivers and spear fishermen, a snorkel with a simple design is the best snorkel.

With how popular water activities like snorkeling, diving, and spearfishing have gotten in the past decades, many strides have been made in snorkel technology. Nowadays, even entry level snorkels are a technological marvel compared to the hollow reed tubes our predecessors used to use.

You can get snorkels with dry tops and purge valves that keep water from entering the tube, as if it were protected by a magic water repelling barrier. As nice as these features are, they are actually detrimental to freedivers.

For us freedivers, there is only one type of snorkel we need. And that is the classic J-type snorkel sans dry-top or purge valve. The features we are looking for are a comfortable mouthpiece and some extras that might not be found on most snorkels.

Even though a traditional snorkel seems somewhat lacking in features, it actually has everything you need and none of the fluff. That means shopping for them will be a breeze, and you will save lots of money. Let’s go over what to look for in a freediving snorkel so that you can find the best one for you.

Our Top Picks:

Cressi Corsica, Black/Black [DUPLICATE]
Mares Dual Snorkel for Spearfishing and Freediving, Black

Best Freediving Snorkels Review

Cressi Corsica

Cressi Corsica, Black/Black [DUPLICATE]
248 Reviews
Cressi Corsica, Black/Black [DUPLICATE]
  • The Corsica is the ideal snorkel for freediving, spearfishing and scuba diving. Very light and comfortable.
  • Large diameter snorkel tube provides unobstructed ease of breathing.
  • Soft bendable snorkel tube to maintain proper and comfortable positioning.

The Cressi Corsica was designed specifically for spearfishing and freediving and it shows. With its soft and flexible large diameter tubing, you can adjust it into a comfortable position behind your head while maintaining consistent airflow on the surface.

When underwater, the mouthpiece will stay out of your way by resting gently beneath the chin for improved hydrodynamics. Comfort is once again a priority which is why the silicone mouthpiece is designed to be hypoallergenic and to fit ergonomically into one’s mouth. Thanks to its anatomical shape, the mouthpiece won’t dig into your gums or teeth even during long sessions in the water.

Pros:

  • Flexible snorkel tube allows for easy storage as well as comfortable positioning while underwater.
  • Large diameter snorkel tube and specially designed u-bend allows for easy and unobstructed breathing and clearing.
  • Soft and anatomical silicone mouthpiece is hypoallergenic and remains comfortable even during longer diving sessions.
  • Can easily fit into a BCD pocket thanks to the ultra bendable tube.
  • No closures or vents that may fail or hold air.

Cons:

  • The mask clip is low quality and can easily break. Replace it or you may end up losing the snorkel.

OMER Sub Zoom Pro Soft Snorkel

Sale
Omer Zoom Snorkel - Black
10 Reviews

The OMER Zoom Pro features an ergonomically designed air tube and mouthpiece made with hypoallergenic silicone. It naturally curves around the face and will not get in the way underwater. Fill your lungs with fresh oxygen thanks to the large internal tube that is 20mm in diameter, a dimension that optimizes the air flow rate.

In order to keep drag as low as possible, many components were kept to a minimum in size, such as the strap holder. The snorkel tube of the Zoom Pro is constructed from flexible plastic material that, despite being soft, has high mechanical strength. The material is often used in underwater devices subject to wear and tear, as well as heavy-duty engineering components so you know it is built to last.

Furthermore, the OMER Zoom Pro won’t discolor under UV light radiation, nor will it swell up in the water. This is due to its high rebound elasticity so divers can fold it up when not in use and it will simply snap back into shape once it is needed. The material is not so rigid that it vibrates during the ascent.

Pros:

  • Ergonomic design built to adhere to the profile of a diver’s face.
  • Mouthpiece made with hypoallergenic silicone, and the tube from Thermoplastic Urethane (TPU), a flexible and durable plastic material.
  • The snorkel tube is foldable for travel and has an internal diameter of 20mm for optimized air flow rate.
  • Dimensions of components kept as small as possible to still be functional and yet minimizes drag.
  • Will not swell up in the water or discolor when exposed to UV rays.

Cons:

  • The mouthpiece runs a little small, you may feel some discomfort using it for more than an hour.

Aqua Lung Sport Nautilus Roll Up Snorkel

Aqua Lung Sport Nautilus Roll Up Snorkel (Black)
112 Reviews
Aqua Lung Sport Nautilus Roll Up Snorkel (Black)
  • Merchandise, made by Aqua Lung Sport. It is a Nautilus Travel, Snorkel . Comes in Various Colors. Comes in Various Sizes. The package weight is approx...

You will be amazed at how much space you can save when traveling with the Aqua Lung Sport Nautilus roll-up snorkel. Seriously, this thing can roll up to the size of your fist, allowing it to be easily transported within its holder or kept in a BCD or clipped to a D-ring when diving.

With how soft the silicone material is, you know that this snorkel is comfortable and extremely flexible. Despite how bendable the snorkel is, during strong currents you’d think it would flop around but it holds straight with no issues.

The Aqua Lung also comes with a useful, adjustable button clip that securely attaches the snorkel to the mask. This makes detaching it from the mask a breeze without ripping the band off the mask (which is what many other models do) and ruining your fit.

Pros:

  • Compact design, capable of rolling up to fit in a BCD pocket or save on bag space when travelling.
  • Silicone design is durable, yet flexible to allow it to roll up. Don’t worry, it will stay straight and functional during strong currents.
  • Comfortable mouthpiece.
  • Adjustable button clip that connects to the mask and allows for quick detachments without ruining your fit.

Cons:

  • Some users have complained that this snorkel is too floppy, while most reviews agree that it holds strong. Your mileage may vary.

Mares Dual Snorkel

Mares Dual Snorkel for Spearfishing and Freediving, Black
129 Reviews
Mares Dual Snorkel for Spearfishing and Freediving, Black
  • Optimized diameter and length to prevent air turbulence caused by emptying
  • Constructed from bi-materials with different textures to prevent irritation on the nape of the neck as well as providing flexibility without...
  • Hydrodynamic design reduces vibrations and noise during underwater movements

The Mares Dual Snorkel is perfect for freediving and spearfishing because of how it is angled to stay out of your way and help you be comfortable underwater. It is constructed with bi-materials with differing textures which keeps it from irritating the nape of your neck while also ensuring flexibility during use.

Next, this snorkel is built to be hydrodynamic, vibration-resistant and quiet, as well as flexible without causing any interruptions to the airflow. Perfect for spearfishing when you want to be able to sneak up on fishes.

The mouthpiece is made from hypoallergenic silicone and is designed to offer clear and easy breathing and is suitable for prolonged use without feeling uncomfortable. The Mares Dual Snorkel has an overall very simple design that does exactly what you need it to do and it does it very well.

Pros:

  • Anatomical design contours around your face and stays out of your way.
  • Optimized tube length and diameter to reduce air turbulence that occurs when emptying.
  • Hydrodynamic design makes almost no noises that can alert fish to your presence.
  • Low profile, low drag, flexible where it needs to be and otherwise very solid.

Cons:

  • The rubber mouthpiece may detach if you are not careful.
  • Some users complain about tube length.

Best Freediving Snorkel Buying Guide

Dry Snorkel Features – Purge Valves and Dry Tops

Purge Valves

You will find that most mid-range or higher SCUBA diving or snorkeling snorkels come with a purge valve, but once again, this is not needed for a freediving snorkel. For those unaware, purge valves are a one-way valve that is located near the mouthpiece, in a small reservoir on the lowest section of the snorkel.

If any water manages to enter the snorkel tube, it will accumulate in the reservoir and get vented out of the tube without letting any water re-enter. To clear the water, one simply needs to forcefully exhale from the mouth to do so.

As neat as this feature is, it does add an element that requires frequent maintenance. Furthermore, there is the potential of it malfunctioning when you need it most. Since it is not absolutely necessary and it does add extra bulk to the snorkel, freedivers tend to forgo it.

Dry Tops

Dry tops are yet another neat feature that freedivers do not benefit from at all. In fact, dry tops can actually be detrimental. But first, let’s explain what it does. Dry tops seal the tube opening whenever water is about to enter.

It uses a float valve mechanism that relies on a buoyant material to open and close the seal as the water level rises or lowers. If the snorkel gets submerged or an unexpected wave splashes on the tube, the float valve will seal the opening shut.

Due to the automatic process of the dry top, beginners feel confident that little to no water will ever enter the tube, and any that do will get vented out by the purge valve. Snorkels with this setup are known as dry snorkels.

Dry snorkels are excellent for snorkelers who only stay by the surface of the water, however they actually work against freedivers, spear fishermen, SCUBA divers, and even snorkelers who duck dive. The reason is that when the dry top seals the opening, it traps the air inside the tube. The remaining air adds buoyancy and will constantly pull the snorkel upwards.

In other words, you will have to actively fight against the trapped air and this constant tugging can actually break the watertight seal on your mask. Not good when you’re several meters underwater and water starts to flood in.

Mouthpiece

When selecting a snorkel, one important consideration is the mouthpiece. When snorkeling or freediving, you will spend a lot of time by the surface with the snorkel in your mouth compared to other water sports. Thus, it must be comfortable enough for you to use for many hours without feeling discomfort.

In order to ensure the mouthpiece is comfortable, first consider the material. You should look for mouthpieces made from soft silicone materials. In addition to being comfortably soft, it is also easy to clean and hypoallergenic. Mouthpieces are detachable to allow you to clean it more thoroughly.

Next, consider the size of the mouthpiece. You should not have to force your lips over the mouthpiece, nor bite down extremely hard in order for it to stay in place. You will know the mouthpiece is an appropriate size when your lips and jaw is relaxed and you do not feel pain, even when worn for a long time.

Lastly, the bite tabs in a snorkel mouthpiece should be soft as well. Some high-end snorkels have bite tabs that conform to the shape of your bite for greater comfort.

Size

When it comes to freediving snorkels, longer is not better. The snorkel should be as large and long as it needs to be and no more (the tube should be around a foot in length). This is because a bulky snorkel increases drag, and the longer the tube length, the more space there is for “dead air” to linger.

When breathing through a snorkel, the air in the tube must be cleared out each time you exhale. Otherwise, you will start inhaling some of the carbon dioxide (CO2) that didn’t get cleared out instead of a full breath of fresh oxygen.You will slowly asphyxiate if you breathe too much dead air in the tube. If you start to feel dizzy or lightheaded, surface immediately.

If your snorkel ever gets filled with water while you’re using it, you may accidentally choke on it and fresh oxygen won’t be able to enter. You must quickly clear all of the water out by forcefully exhaling in order to breathe through the tube again. However, the longer the tube, the more difficult this is to do.

Material

Snorkel tubes can be made from either soft or hard plastic. Higher end snorkels may incorporate both in their design.

Snorkels made from hard plastic are, unsurprisingly, durable and strong (and typically less expensive). Unfortunately, they are not very flexible. A rigid snorkel is not desirable because they are more likely to break as opposed to one that has some flexibility. It’s also common for hard plastic snorkels to catch on something and get stuck.

Flex Tube

A feature you will find on many snorkels is something called a flex tube. The flex tube is located near the bottom and it connects the main breathing tube to the mouthpiece (as opposed to one continuous tube).

The benefit of flex tubes is that when you’re by the surface and want to talk to your buddy, you can remove the mouthpiece and the flex tube will let it hang by your side out of your mouth’s way so that you can speak.

Unfortunately, freedivers and SCUBA divers do not benefit from this at all. When diving underwater, the flex tube will flap around, get in the way, increase drag, and will generally be a nuisance.

A foldable snorkel may be beneficial for SCUBA divers who may want to fold up their snorkel and store it in their BCD. Unfortunately, freedivers once again do not benefit from this, particularly those who prefer to leave their snorkel beneath their mask strap.

Mask Attachment

Snorkels must securely attach to the snorkel mask, and most snorkels come with either a plastic clip or a figure-eight style attachment. Mask clips can be either the quick-release type or the lift-to-attach type.

The figure-eight silicone keeper is ideal for snorkels with round tubes. Conversely, the mask clips are generally used for snorkels with oval or squarish tubes. The former is extremely cheap and easy to replace though it is slightly more of a hassle to attach it to your mask compared to the hard plastic clips.

Some freedivers leave their snorkels clipped to their masks and dive with the snorkel. However, some freedivers will leave their snorkel floating at the surface so they can dive unencumbered by it. To do this, you can either get a floating snorkel and ask a dive buddy to hold onto it for you, or attach the snorkel with a string to a freediving float.

Color

We don’t like to mention colors on a product unless they serve a practical purpose. In the case of freediving, colors do matter a bit. For instance, beginner freedivers may want to use a snorkel that is brightly colored.

A bright colored snorkel will stand out even from a distance. In case you are in trouble, it is very easy for help to spot you. You might want to stand out so that boats, snorkelers, or others in the water can see you and can avoid colliding into you.

If you plan on spearfishing, then you want a snorkel that is a dull, dark color, such as blue or black. This can allow you to blend into the water better and avoid detection from sea creatures. While fish can’t exactly see colors, they can still tell when there is a difference in contrast.

Casual snorkelers or freedivers can pick whatever color or style they prefer.

Snorkel Safety Tips

Snorkel in or out?

A simple way to spot a newbie freediver (perhaps someone who is transitioning from snorkeling to freediving) is to check if they have the snorkel in their mouth or not in the middle of a dive. Beginners will keep the snorkel in their mouth, but experienced freedivers know better than to do that.

It isn’t safe to dive with the snorkel in your mouth. Experienced divers know better than to do this because in the event of a shallow water blackout, your body will subconsciously clench your jaw, locking the snorkel in place and raising your chances of drowning.

Keep in mind that while submerged, a snorkel will essentially act like a funnel of water that will get poured straight into your lungs the second you blackout. You don’t want the first thing you do after surfacing to be frantically removing a snorkel from your mouth so you can breathe. Having to clear water out of the tube when you are already out of breath is even worse.

New freedivers will often make the mistake of keeping the snorkel in their mouth when freediving, so if you catch somebody doing this, make sure to let them know that it is unsafe to do.

With or Without A Snorkel?

Instead of asking whether the snorkel should be in or out of your mouth, how about whether you need a snorkel at all? For an in-depth answer, we recommend you read this article in its entirety. Otherwise, here is the summary.

Depending on how far you plan on diving, the type of diving you’re doing, as well as what depths you will reach, the answer may differ for each scenario.

For example, if you are spearfishing then you will most likely be within 80 feet of the surface. In this case, just dive down with your snorkel. Spearos need to be aware of their surroundings at the surface, so a snorkel is a necessity.

If you are freediving at medium depths then it is up to personal preference as well as the setup you have. For instance, if you have a freediving float that you can safely and securely tie your snorkel to, then you can use it by the surface and just leave it there when diving.

On very deep dives you are better served diving without a mask or snorkel. Any equipment will increase drag, and having a snorkel floating behind you can be distracting. When depth matters, you cannot afford to have anything holding you back, and a snorkel would simply get in the way.

Best Freediving Snorkel Recap

Modern snorkels come with many advanced features, many of which are unnecessary or even detrimental to a freediver. Snorkels with dry tops or flex tubes will actually get in the way of your dive. Ideally, the best freediving snorkel will be a traditional J-type snorkel that can be quickly and easily cleared.

When it comes to material. you want a snorkel that is made of soft plastic. Soft plastic is flexible and can withstand more motion. They are also more comfortable to wear. Hard plastic is prone to breaking, particularly if there is a strong wave or if it gets caught on something. You need to find a snorkel that is soft enough to bend, yet rigid enough to maintain its shape.

Lastly, keep in mind how you intend on using the snorkel. It’s not a good idea to dive underwater with a snorkel in your mouth. If you ever experience a shallow water blackout, the snorkel will funnel in water into your lungs and you will almost certainly drown.

Furthermore, you may not even want to have a snorkel hanging around when diving. Set up a freediving float that you can attach the snorkel to, or have a buddy around to grab your snorkel, and you are clear to freedive without worrying about where your snorkel is.

You may also be interested in checking out our other gear reviews: