We Rate the Best Scuba Dive Computers: Stay Safe Under Water

best scuba dive computers
Written by Joe

Up your diving game with one of the best scuba dive computers available right now. There are so many options available so here’s what to take into consideration.

Having your own scuba dive computer is extremely important for anyone who wants to have the ultimate diving experience while keeping safety in mind. With one, you can easily plan your dives with full knowledge of the suggested decompression stop, remaining time of the dive and your nitrogen levels.

The advancement of technology has led to dive computers that are super easy to operate, with many of them having one main button that provides a simple interface to provide the information you need at a glance. And while no one will judge what you wear down under, these computers are very stylish.

Overview of the 10 best scuba dive computers

Sooner or later, a serious diver will want to purchase a new scuba dive computer. Choosing which computer to purchase is a process that calls for extensive research. Scuba dive computers have become an integral part of divers’ lives with many demanding products from the following industry veterans

Here's our pick of the best:​


Product Name


Weight Lbs







1 lbs



1 lbs



1.72 lbs



0.6 lbs



0.49 lbs



2.34 lbs



1.7 lbs



0.42 lbs



0.55 lbs


Best scuba dive computer brands

Aeris: This company stocks a wide variety of scuba dive computers designed for all skill levels ranging from novices to pros. Aeris is credited with designing and manufacturing reliable, elegant and multifunctional computers in small packages for the avid diver.

Mares: Scuba dive computers by Mares are popular all over the world and occupy a big niche within the scuba diving industry. Mares has so far unveiled many innovative computers with unique features that make the company one of the most popular scuba dive computer brand in the industry.

Cressi: This company is known for some of the best sporting scuba diving computers that are designed with user friendliness and ease of use in mind. Whether you do free diving or use Air, Cressi has a range of computers that suit various scuba diving scenarios.

Oceanic: In addition to diving computers, Oceanic is also known for a whole lot of scuba diving equipment that are designed with versatility and high quality in mind. The Oceanic OC1 and OCS prove that this brand is the most popular brand worldwide.

Suunto: Scuba diving computers by Suunto are known for multi-functionality, reliability, elegance and precision. From the sophisticated Suunto D9tx to the little Gekko, Suunto offers a great step in innovation, design and technology.

Sherwood: If you are a novice, intermediate or pro diver with Nitrox Certification, consider investing in a Sherwood scuba dive computer.

Tusa: Since its inception, Tusa has been dedicating to bringing the best of Japanese excellence and finesse to the scuba diving community. The company is known for a full range of quality diving, swimming and snorkeling equipment for all skill levels.

ScubaPro: You may know this company by another name, UWATEC, and is credited with dive computers that combine personality and style excellently. It is one of the leading manufacturers of scuba diving, swimming and snorkeling equipment.

With so many options available on the market, it’s hard to know which ones offer value for money and which are a waste of your cash. The good news is that we did all the hard work and did extensive research to bring you reviews of the best scuba dive computers that you can find on Amazon.

UWATEC Galileo SOL Hoseless Wrist Computer

ScubaPro Galileo Sol Scuba Diving Wrist Computer w/ Transmitter

Despite being on the market for almost two years, this is the best wrist scuba dive computer thanks to its impressive features. One of the things that many divers love about it is that its software can be updated easily from the company website. It is a hoseless, wrist mounted dive computer whose display is easy to read. It can monitor your heart rate and its integrated compass is not affected by depth or tilt, making it easy for you to stay on course. The data is easily downloadable to you PC where you can view charts and graphs to evaluate your activity. It has excellent backlight, is customizable and the batteries can be changed easily. It is also versatile and can be utilized for many functions.

Cressi Leonardo

Cressi Leonardo 2 Gauge Air /Nitrox Dive Computer Console

This is a wrist mount dive computer that retails for about $200 and which is a great entry level model. You can purchase a separate USB cable that can be used to connect to your PC for data transfer.

It comes with gauge, nitro and air modes. The battery is visible and has audible alarms that deliver important information to keep you safe. It comes in a number of colors and is generally sleek. With just one button, the Cressi Leonardo is ready for use.

It has larger digits that ensure easy reading. Other notable features of this wrist mount dive computer include affordability, ability to retain nitrogen settings, shows water temperature when you dive and ease of use.

For someone who isn’t looking to break the bank or novice diver, the Cressi Leonardo is a worthy investment.

Cressi Giotto

ressi Giotto Wrist Computer

At just 6.4 ounces, the Cressi Giotto is a 3-button, wrist watch computer that many users agree is the simplest to use. This model comes with a clearly visible battery life indicator as well as an integrated alarm system that beeps loudly to relay important information that’s crucial to safe diving. It also has a high-definition screen that gives large numerical displays. It can reset after each dive, making it particularly likable by rental establishments. It has nine saturation halftimes that range from 2.5 to 480 minutes. Additionally, the package comes with an aluminum stand on which you can put your dive computer when not in use or during data transfer to a PC.

This video gives more detailed information about the Cressi Giotto.

Aeris A300 Persona

New AERIS A300 Personal Scuba Diving Wrist Computer - Powered by Dual Algorithm with Deep Stop

This is another impressive wrist watch dive computer. It is powered by Dual Algorithm with Dual Stop. Like other dive computers on this list, the Aeris A300 Persona comes at a reduced price but doesn’t disappoint when it comes to value, making it excellent value for beginners or those on a budget.

It is a sophisticated et easy to use dive computer that’s designed to function as either a wrist or console computer when need be. Its high-resolution tissue loading bar graph provides at a glance feedback that lets you know how to control your dive. Its use of Norm and Tech modes makes the computer unique.

The former is the default mode which provides all the important information and settings. It’s best for new divers or anyone who doesn’t want to be bothered with extra information.

The Tech mode is designed or more experienced divers who want access to advanced features and fine tuning. The 3-button interface allows for intuitive back and forward navigation thanks to a whole of personalized settings.

Oceanic OCL

Oceanic OCL Dive Computer Watch Only

While it is a bit pricier, the Oceanic OCL is a wrist watch scuba dive computer jammed with all the features that divers look for. It is powered by Oceanic’s Exclusive Dual Algorithm – Pelagic DSAT or Pelagic Z+. It is a stylish wrist computer whose decompression settings can be changed to conservative or very liberal according this YouTube video.

You can easily customize the alarm and even adjust for the altitude. The Oceanic OCL is so sophisticated that it doesn’t just rely on depth to keep track of your nitrogen. It uses a whole bunch of other calculations to monitor nitrogen, putting it several steps ahead of other scuba diver wrist computers.

It comes with six buttons, but this doesn’t make any of them any less useful.

Cressi Sub Leonardo

This is another dive computer from the classic Cressi brand and is by far the most cost effective scuba wrist computer on this list. It's a great beginners dive watch.

It comes with an easily adjustable rubber wrist band, one single button below the button as well as a large, easy to read display on the watch.

It also comes with Gauge, Nitrox and Air modes. It has nine saturation hemi-phases that go between 2.5 and 480 minutes as well as a CNS oxygen toxicity graphic indicator. It is equipped with a logbook for 60 dives/75hours of info and an ascent rate alarm. With this package, you also get a Metric or English Backlit display built-in clock and calendar. It can be reset fully after each making it suitable for rental purpose.

Mares Icon HD

The Mares Icon HD is what many like to call the iPhone of scuba diving computers and understandably so. It comes with colored display that’s made possible by thin film technology. It is offered with wireless gas integration.

Its Lithium Ion battery can easily be charged via a USB socket of a PC. It can be used in Gauge, Nitrox or Air mode, The color groupings of the different tank pressures denote the priority of the information displayed on the screen. T

he maximum operating depth is indicated in gray, deep stop in blue, deco stop in orange while the safety stop is indicated in green. It comes with four buttons that can be used for alternative displays.

The only downside, at least for some divers, is that the battery has to be charged every night as it can only last for up three long dives.

Oceanic VTX

The Oceanic VTX, with its small size, sleek screen and terminator-like chrome frame, is a very enticing piece of tech. It was originally named Aeris A300 CS and it comes with an OLED display that makes the fonts highly visible.

It can be connected to your iPhone or PC to make data transfer easy via Bluetooth. The 3-button system makes navigation super easy.

The distinct alarm sound lets you know when you have reached your no-deco limit and comes in handy when evaluating emergency ascends with friends.

Shearwater Research Perdix Dive Computer

Shearwater Research Dive Computer

The Perdix boasts the same features of the Shearwater Research Petrel computer, only that it’s smaller, more compact, has a longer battery life and has a slimmer profile. It comes with 2.2 inch widescreen that displays all the relevant information for the diver.

It features four settings – CC INT for closed circuit re-breather diving, gauge mode, OC technical that allows use of up to trimix gasses and OC Recreational that allows use of up to three oxygen/nitrogen gasses.

The modes can be customized.

Two buttons placed on either side of the dive computer control everything. It is powered by two AA batteries that are interchangeable and don’t require specialized tools.

Hollis TX1

Hollis TX1 - Trimix Computer for Technical Diving and Scuba Diving

The Hollis TX1 is a scuba dive computer that is capable of wireless and open circuit trimix/nitrox/air monitoring. It comes with Buhlmann ZHL-16C algorithm that allows for adjustment of gradient factors so that you can control decompression calculations. With 6 independent transmitters as well as 6 gasses, there are infinite options for use when it comes to technical and recreational diving.

Other features of this dive computer include an audible alarm, advanced 3 axis digital compass so that you can stay on course, maximum operational depth of 400 meters and user upgradable software just to name a few.

What to look for when buying a dive computer

Some of the factors to consider when in the market for a dive computer include:

Data transfer: Many computers come with an integrated computer interface. This technology varies from manufacturer to manufacture. In some cases, a USB cable connects to the computer while other computers utilize an infrared interface. Some models come with dedicated software that connects to social media and eliminates the need for ‘logbooks.’

Gas: There are four main gas types used in scuba dive computers. Compressed air is made up of 21% oxygen and 79% nitrogen. Trimix is a mixture that contains nitrogen, oxygen and nitrogen.

Dive computers with Trimix are mostly used for deep dives greater than 50m. Nitrox mixture is the most widely used for exploration and is made up of 32% oxygen and 68% nitrogen. Some manufacturers are known to integrate helium into computer management, particularly where recreational diving is involved.

Console or wrist mounted: These are the two main mounting possibilities of scuba diving computers, each of which has its pros and cons. Console mounted computers are usually connected to a regulator hose and as such, losing them isn’t easy.

However, playback and control of different parameters can prove difficult if the diver’s hands are caught in the camera.

Wrist mounted dive computers, on the other hand, are available in a plethora of models and operation is hands-free making them ideal for daily use. They're also great for beginners or those on a budget.

It’s easy to forget to bring along your wrist computer when going underwater due to its small size.

Air management: A scuba dive computer can provide indications on the pressure of the tank when underwater.

Such information is usually transmitted through a high-pressure hose and as such is only possible with console dive computers.

Battery life: Many scuba dive computers come with replaceable computers. Ensure that the battery of your scuba dive computer is easy to find. Some models can be charged via a USB cable.


Diving can be an amazing adventure but it’s important to make sure that you are safe every time you descend. A scuba dive computer can help you determine how long you should stay underwater and when you should come up.

If buying the right scuba dive computer sounds a little too complicated for you, this guide seeks to make that easier as you may have already realized.

Whether you are a new or experienced diver, this guide provides all the information that you need to make the right purchase.

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