Best Dive Computer 2022 – Reviews & Guide for Beginners and Advanced Divers

Thank goodness for the invention of the dive computer – a diver’s best friend.

These nifty little devices, also known as personal decompression computers, or decompression meters, measure the time and depth of a dive so a diver can make a safe ascent profile calculation to avoid decompression sickness (not-so-affectionately) known as the bends – a diver’s not-so-best friend.

Doesn’t it just sound peachy to not have to spend precious time making dive table calculations?

Don’t worry, if you’re a beginner and this all looks more like a foreign language to you, we’ve got a section in our buyer’s guide that explains exactly how these complex devices work.

Whether you’re a beginner just getting into the swing of things, or an expert commercial, or recreational diver, finding the ideal dive computer in the sea of products on the market can prove to be a proper pain. Well, say no more, as always, All Things Waterproof is here to save the day.

Our diving experts have siphoned through the countless products out there and narrowed the list down to the Top 17 Dive Computers Ideal for Beginner to Advanced Divers, and sure enough, our Editor’s Pick is the Suunto D4i Novo Wrist Computer (Compare Price on Leisure Pro and Amazon). Let’s see why

Air-Integrated Wrist Dive Computers – Reviews

Suunto D4i Novo Dive Computer Watch

Diving Level: Beginner & Expert

Air Integration: Optional wireless


  • Easy to use
  • Easy-to-read display
  • Innovative apnea timer
  • Lightweight


  • No navigation mode

Our Editor’s Pick, the D4i Novo can be classed as a computer for all divers – from beginner to expert. With four dive modes: Air, Nitrox, Free, and Off, the Suunto D4i is sleek and lightweight, with optional wireless air integration to keep track of current cylinder pressure and remaining air time.

The D4i also features an innovative apnea timer, as well as a timer in Air/Nitrox modes.

Scubapro Mantis 2.0


  • LED transmitter
  • 4 dive modes
  • Time-keeping functions
  • HRM belt
  • Compass


  • Little to no negative remarks

The Mantis 2.0 is a neat, wrist watch-style computer that functions on four dive modes: Deco, Gauge, Apnea, and CCR. A sport-mode offers full topside time-keeping functions, and a LED transmitter offers an on-the-spot estimate of your pressure when the first stage is attached to a tank. In other words, you can tell if the tank has gas without even having to activate the computer.

LED flashing sequence serves as a safety function. More than 100 bar will trigger a slow, short blinking green light, between 100 & 50 bars will indicate a short, double blinking orange light, and a long, single blink red light will appear below 50 bars.

The transmitter is powered by a user-replaceable battery, and it comes with a heart rate monitor belt. This computer is said to be everything a recreational diver wants, and everything a technical diver needs.

Oceanic OCi

Oceanic packed the technology of their advanced OC1 and the style of their OCS in a recreational, wireless, air-integrated computer. It can handle up to 4 gasses and even calculate nitrogen in a free dive.

Additional features that make this a great computer include the ability to select between salt and fresh water, automatic altitude adjustment, customizable alarms, and a digital compass.

The only negative review on this watch sized dive computer pertained to the user manual – it offers no practical explanation, just really in-depth engineer-type material.

Suunto EON Steel

Definitely, worth its weight in gold, the Suunto EON Steel dive computer has been said to be one of the safest pieces of scuba gear to own.

It’s relatively easy to use with a color bar graph that prevents you from ascending too fast – great for beginner divers. Once the graph is green then you’re good, if it goes yellow then you’re getting too fast, and of course, red means you’re ascending way too fast – pretty simple eh? It also features safety stop information.

A sender transmits tank pressure to the computer and senses Nitrox vs regular air. Made of steel, this computer is solid and rugged, and once you update the software from Suunto, it’ll serve as your underwater best friend for a long time.

Mares Puck Pro


  • Slim design
  • Large display
  • Multi-gas support


  • No stopwatch
  • No depth alarm

A large display on a slim design, upgradeable firmware, and multi-gas capability are a few of the latest features Mares introduced with the Puck Pro. It features audible and visual warnings as well.

Unfortunately, while it does have some ideal features, a few users identified some drawbacks. It has no stopwatch feature, no depth alarm, and if you want to change the battery yourself, you’ll have to purchase O-rings or have a dive shop do this for you.

Cressi Newton


  • Easy to use
  • Sleek & lightweight
  • Wireless transmit option
  • Flexible operating modes


  • No compass
  • Display is a bit small
  • Battery change has to be done by service center

The Cressi Newton computer features a compact design with a bold, easy-to-read display. It’s also a great tool out of the water, with the ability to deactivate the dive program and wear like an everyday watch.

It’s been described as a comfortable and light weight watch, with titanium metal components that can withstand the brutal torture of salt water. It comes equipped with an aural and light safety alarms that are loud and bright – perfect for safety!

Non-Air-Integrated Wrist Dive Computers – Reviews

TUSA IQ1204 DC Solar Link


  • Solar rechargeable
  • 4-mix gas support
  • Aural warnings
  • Free-dive mode
  • Depth interval alarm
  • Compass equipped


  • Little to no negative remarks

Yup, you heard it right, as the name suggests, the special feature with the TUSA IQ1204 is its solar rechargeable function. Boasting the largest screen size in the DC-Solar Series, this watch style computer is easy-to-read and provides accelerated decompression in full scale – thanks to its 4-mix gas support. It also features an exclusive M value warning function to help you avoid the dreaded bends.

Additionally, out of the water, the IQ1204 enables you to use Bluetooth SMART to upload your dive log to your smartphone. With the downloadable app, you can automatically record entry time, exit time, dive time, maximum water depth, average water depth, water temperature, date, and other log data- pretty cool huh?

Shearwater Research Petrel


  • Large display
  • Air/Nitrox/Trimix capable
  • Easy-replace batteries
  • Bottom timer
  • Stopwatch


  • No compass

40% smaller than the Shearwater Predator, the Shearwater Research Petrel computer still boasts a large, easy-to-read, full color, high-resolution display. Air/Nitrox/Trimix capable, the Petrel carries SAFT Lithium LS14500 AA batteries but can be replaced with standard alkaline AA batteries – this, of course, can affect usage time.

Mares Smart


  • Large display
  • User-friendly
  • Backlight
  • Safety stop countdown


  • Watch alarm not very loud
  • no USB cable included

One of the top sellers in Amazon’s Diving Electronics Category, the Mare Smart replicates the large, easy-to-read display of its counterpart, the Puck Pro – Mares nailed it with the display yet again!

Packaged into a slimmer profile, it’s user-friendly, has a mineral glass, segmented display, and comes with a safety stop countdown. Apart from its great dive features, it looks decent as a stand-alone wrist watch.

Suunto Zoop Novo *New Model*


  • Easy to use
  • Big, easy-to-read backlit display
  • Aural alarms
  • User replaceable battery
  • PC compatible


  • No compass
  • No fresh water setting

What stands out the most with the new Suunto Zoop wrist computer watch is its big, easy-to-read backlit display, a really great improvement from the older model.

The Zoop Novo is easy to use and makes a great entry level dive computer. Audible alarms, altitude setting, and a user-replaceable battery are bonus features with the Suunto Zoop.

The new 4 button interface allows for a more intuitive use ideal for beginners. A great buy for beginner divers.

Aqua Lung i300


  • Neat & easy to use
  • Aural safety warning
  • LED safety warning
  • Flexible operating modes
  • Water activated ON
  • Fresh/Salt Water recognition


  • No compass
  • Sync cable sold separately

The i300 is said to have a basic, uncomplicated and effortless approach earning its place in the dive world. It makes a great beginner computer for the basic diver, boasts an easy-to-use interface, flexible operating modes, built-in backlight, and user-changeable battery (with data retention capabilities).

Unfortunately this model has been discontinued, but it is still available at some shops for a great discount price. So pick one up as long as you can!

It has 4 operating modes: Air, Nitrox, Gauge (with run timer), and Free Dive. Added safety features such as audible alarms, a high-vis LED warning light, and water activated ON switch are additional factors that have earned the i300 its place in our list.

User updatable software allows you to keep your computer’s latest features upgraded (sync cable sold separately). When paired with a pressure gauge, the combination of instrumentation makes your dive simple and straight forward.

Make sure you also check out our List of the Best Dive Watches – not only for divers!

Suunto Vyper Novo


  • Easy to use
  • Free dive mode
  • Backlit
  • Large display
  • Improved connectivity with PC


  • No compass

Described as easy-to-use, the Vyper Novo, by Suunto, features four dive modes – including free dive mode, and 3-gas support. Its backlit, large, display makes it incredibly easy to read, and an improved USB cable makes it even easier to connect to your PC. The compact nature of this computer makes it quite neat and comfortable to wear. Definitely great for beginners and experts alike.

Deepblu Cosmiq+ *New*


  • Bright OLED screen
  • Bluetooth enabled – no extra cables needed
  • Built in rechargable batteries
  • Also works in apnea and gauge mode
  • Great packaging and supplied extras


  • Very limited settings available without smart phone with app installed
  • Modified algorithm not really transparent

The new Deepblu Cosmiq+ is a great computer for the enthustiastic sport diver. The bright and easy to read OLED screen is a rare treat at this price point and usually reserved for triple the price tech diving computers. Batteries last for weeks and are easily recharged with the supplied charger cable. No need to change or remove the batteries!

Packaging is great with two screen protectors supplied along with two different wrist bands and bungee cord for the cold water divers.

Underwater the computer does everything you expect from a sport diver computer, and thanks to the great screen you need never shine a light at it or push any buttons to activate the backlight.

The one drawback is that setup is done through an app (Android or iOS) which might make it cumbersome to change your dive settings once you have left the comfort of your home for a crowded and wet dive boat. But at this price point the Deepblu Cosmiq+ truly delivers! Read our in-depth review of the Cosmiq+ here.

Oceanic Geo 2.0 Air/Nitrox


  • Functional & stylish
  • 4 operating modes
  • User-Friendly
  • Safety stop countdown
  • Fits nicely on a female wrist


  • A bit roundabout to confirm the Nitrox mix

Said to be great for both recreational and professional diving, the Oceanic Geo 2.0 marries quality, function, and style. It’s small enough to be worn as an everyday watch, features 4 operating modes: WATCH, NORM, GAUGE, and FREE.

A user-friendly interface, allowing forward and backward navigation between menus, makes it great for both beginners and experts. Divers can also switch between up to 2 Nitrox mixes to 100% O2 without restriction. A safety stop countdown also keeps you in check and the battery is user replaceable and is said to cost around $6.

The only major reported downside to the Geo 2.0, is you cannot enter the Nitrox mix and confirm it was entered correctly – the only way to confirm your mix is to enter a separate menu. Other than that, it is a great beginner-to-expert dive computer.

ScubaPro Aladin Tec 3G


  • 3-dive mode
  • Multi-gas & CCR support
  • Nitrogen bar
  • Replaceable battery


  • Screen can be difficult to read

Targeted towards technical divers looking for multi-gas and CCR support functions, the Aladin Tec 3G features a bright, LCD segmented display with 3 dive modes: Scuba, Free-diving, and Gauge. However, it’s not restricted to technical divers, it’s also for recreational divers who want a computer that can help them develop in diving.

A built-in system calculates safe ascent profiles and a 3-color nitrogen loading bar assists in managing tissue loading, and a user-replaceable battery will offer two years/300 dives of life. Definitely a great buy for technical divers.

Console Mounted Computers

Sherwood Vision


  • Digital compass
  • Altitude adjuster
  • 3-mode operation
  • Dive stop warnings


  • relatively small display screen

The Sherwood Vision computer incorporates a 3-button design with a digital compass and an extremely convenient air-integration display. It has 3 modes: Air, Nitrox, and Gauge, and incorporates an automatic altitude adjuster up to 14,000 ft.

The screen displays dive time remaining, NDL, maximum depth, current depth, and surface interval time. Audible & visual dive stop warnings assist you in safe ascension and nitrogen unloading. Other features include pre-dive planning and repetitive-dive planning.

Aqua Lung i550


  • Easy to read
  • Large display
  • 3-mode operation
  • Dive stop warnings
  • Backlight


  • Alarm volume lowAqua Lung really provided an easy-to-read, large display screen with the i550. Coupled with 3 operating modes: Dive, Nitrox, and Gauge (with a run timer), along with backlighting for low visibility, and an easy, user-replaceable battery, this console mounted dive computer is ideal for technical and recreational divers.

    Tank pressure is said to be quite easy to read on the display screen, real-time calculations allow for accurate gas management, and audible alarms and high-vis LED warning lights contribute to added safety. However, it has been reported that the volume of the alarm is quite low and there appears to be no way to increase the volume.

For the Beginners – How does a Dive Computer work?

So, you’ve just taken up diving as a hobby and you’re absolutely clueless as to the purpose of a dive computer and how it works? Don’t worry we’ve got you covered.

Essentially, a dive computer is a battery-powered computer within a watertight, pressure-resistant housing, that helps you measure time and depth of the dive. It calculates and displays a safe ascent profile so the diver can avoid decompression sickness. It also continuously measures depth and time, and it is able to warn you of excessive ascent rates and missed decompression stops.

Other variables such as water temperature, gas composition, water surface altitude, and cylinder pressure can also be found in some models. Combine all these features into a computer and you’ve got everything you ned to make a safe, fun dive free of decompression sickness.

Buyer’s Guide – How To Choose the Best Scuba Diving Computer?

 Wireless Air Integration

This is a popular, highly sought after feature in dive computers. Air integration allows you to see how much pressure is remaining in the tank. Although they tend to be more expensive, air integrated computers enhance both safety and convenience.


There are a few things to keep in mind in choosing a dive computer, whether it’s wrist style or console mounted. Let’s start with the display. If you’re into mostly recreational day dives, and next to no plans of night diving or low-visibility dives, then a computer with a relatively compact display might suit your needs just fine.

On the other hand, the old adage, “Be prepared” should, especially with diving, should be paramount. If it’ll run you a few extra bucks, it may pay off to invest in a computer with a large, easy-to-read display with backlighting features – should you unintentionally find yourself in situations of low visibility. In other words, we wouldn’t suggest you skimp on the display of your device.

Additionally, a segmented display has been described as being quite helpful and easy to use underwater. Yes, a scuba diving computer might provide all the information you need, however, the layout of this information can make a world of difference underwater. So, keep that in mind as well.

 Display Modes

There are various display modes and although they vary between computers, there are some basic modes to keep in mind when buying a computer.

  • Dive mode – usually activated automatically as soon as you descend – displays current depth, dive timer, remaining dive time, nitrogen levels, maximum depth, and ascent rate indicator.
  • Decompression mode – if you exceed your maximum dive time, the computer will automatically switch to decompression mode with an alert and audible alarm.
  • Scrolling mode – this mode is used to determine your adjusted maximum dive time for a specific planned depth.
  • Surface mode – as the name suggests, this mode is displayed while at the surface and provides information about your previous dive, including any alerts.
  • Log mode – this can be accessed while in surface mode and it’s useful for transferring your dive profiles and history into your logbook.

 Ease of Use

Equally as important as display is the ease of use. Some computers out there offer intuitive design, making it super easy to just strap on and use. For example the Aqua Lung i300, Mares Smart and Suunto Vyper Novo, amongst others, have been described as very user-friendly and easy to use.

A straight forward, easy to use computer can mean spending more time in a breathtaking ocean or lake, as opposed to on dry land trying to figure a rocket ship assembly. Especially, if you’re a beginner, we highly recommend getting a computer that is easy to use.

Of course, we also understand that you only truly know if the computer is easy to use when you’re actually holding it, so pay attention to each one we’ve reviewed in this article, to save yourself time and money.

 Visual & Audible Warnings

Quite a few computers we’ve reviewed come with visual and audible warnings that will indicate to you when it’s time to start making your way to the surface, and also give indications of your ascent profile. At All Things Waterproof, we always respect that safety is paramount, and if it means spending a little more for safety features such as these, then we say go for it.

 Built-in Compass

If you can find a dive computer, like some of the ones we’ve mentioned in this article, that incorporate a digital compass, or a compass of some kind, then again, go for it. Maintaining good situational awareness underwater is obvious, but it’ll also enhance your dive experience if you don’t have to lug around a waterproof compass, or gauge mounted compass with you. That’s just one less thing that might get lost to wild blue.

 Timer / Timing Functions

A built-in timer or timing functions in your computer can also enhance the dive experience you’re looking for. When the divemaster says to meet back in 1:15, you’ve got nothing to worry about if your computer comes with stopwatch capabilities.

 Replaceable Batteries

During our review process we’ve noticed a trend in complaints with regard to batteries. Most users preferred computers which carried simple, replaceable batteries like the Suunto models, or the Shearwater Research Petrel that requires every day, household AA batteries.

Other models, like the Cressi Newton, for example, proved to be a bit of a headache to have the battery changed. It requires O-rings, for water sealing purposes, which had to be either ordered or fitted at a dive center. So, keep this small, but crucial, point in mind.

Care Instructions

A dive computer can be a costly investment, and it can become even costlier when it’s not cared for appropriately. Here are a few steps for making sure your device will last longer:

  • Rinse after use – especially in salt water environments where corrosion can be a real pain.
  • Store your computer in a safe, cool location, i.e not locked up in your car baking in the sun.
  • Clean your device if it has been sitting around for a while. Dust, dirt, and debris can become a pricey nuisance if they filter into the wrong places.


Well, you’re ready to jump in the water with your brand new, spanking dive computer. We’ve given you the best of the best that are on the market, and if you follow our Buyer’s Guide, you’re well on your way to safely exploring the great unknown the water has to offer.

Although they have the potential to carry a bulky price tag, with the right care, attention, and know-how, you can make the most out of your computer. At the end of the day, they increase the safety of a dive, so regardless of price tag, their uses to us are both beneficial and priceless. Now, stop reading and get out into the water!

Best Dive Computer 2022 – Reviews & Guide for Beginners and Advanced Divers

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