Oceanic Geo 2.0 Dive Computer Review

The Oceanic Geo 2.0 dive computer is a neatly designed device that you can wear as a watch every day. It’s made with the beginner to mid-range recreational diver in mind and has the dual-algorithm that Oceanic is known for.

The price reflects the market it targets and so do the features. You won’t find any features you’d expect from a high-end scuba diving computer like air integration, etc. For the range and market it targets, it is a great device and fulfills the requirements you have.

Oceanic Geo 2.0 in Titanium with slate blue ring

Review Summary

Experience Level

Targeting the beginner to mid-level recreational diver.


Wrist dive computer sized as a watch.

Ease of Use

Four buttons along the outside making it easy to use even with gloves.

Price Level

Fairly priced for the features offered.

We Like

  • Clear display making it easy to read
  • Straightforward navigation with four buttons
  • Good set of features
  • Dual algorithm

We Don't Like

  • No air integration
  • Graphs on screen are too small
  • Small logbook for only 24 dives


The Oceanic Geo 2.0 is a great scuba computer for beginners and medium experiences/mid-level recreational divers. It offers a lot of features you expect from a device in that range. One of the best certainly being that it supports two different algorithms. Yet, it also has some downsides as the log book is rather small and there’s no ability for air integration. The logbook issue is easily overcome by offloading the data to a computer and the missing air integration is really not surprising considering the price point.

Oceanic Geo2.0 in white and slate blue

The display is somewhat cramped yet easy to read and understand. The four buttons to navigate through the menus are nicely spaced and intuitively allow to go from menu item to menu item.

The Geo 2.0 is available in four different color combinations:

  • Titanium/Slate Blue
  • Titanium/White
  • White/Slate Blue
  • White/Sea Blue

It is worn at the wrist and it is sized so you can use it as an everyday watch. This makes it a great investment as you get more out of the device. However, it also reduces the screen size and that can in dark and murky waters cause a little trouble to read the information. It’s overall a question of personal style.


The limited real estate on the screen results in the important data being somewhat smaller compared to large sized devices. This is compensated through the fact that you can wear the Geo all day long and every day. The important information is showing on the screen so there’s not much navigating through different screens needed when you’re under water.

Geo 2.0 by Oceanic in Titanium and White

It offers four different dive modes:

  • Watch
  • Norm (Air and Nitrox)
  • Gauge
  • Free Diving

The Geo only comes as a wrist scuba computer. Oceanic offers no console variant of it. If you want a low cost console computer from Oceanic then you have to look at the VEO 2.0. It offers less capabilities but is designed as a console device.

The screen shows all important data like depth, time, temperature without having to scroll through any menus. All data is available at a glance yet due to the smaller screen size it can at times take a second to be able to clearly read it when you’re in somewhat darker environments.

It is designed as a entry-level to mid-range scuba computer and does not offer high-end capabilities like air integration, compass, etc. The display offers a low battery indicator reminding you to replace the battery before going down on a dive.

One of the really nice advantages is that you can change the battery yourself. This otherwise can be a real hassle when you have to send it in to a service center. Being able to replace the battery yourself saves you money and time.

It’s easy to master the navigation on this device. Two buttons are used to step forward/back in the menu tree and to select a specific setting. One button is used to save a setting while the fourth button is there to switch on the backlight. It’ll only take you a few minutes to get used to the navigation. The buttons are spaced out far enough to ensure that you press the right button even with gloves.

The Oceanic Geo 2.0 has the necessary audible and visual alarms that you’d expect and which differ based on the operational modes. For air or nitrox diving the alarms you can set are:

  • Dive Time exceeded
  • Too fast ascent
  • Max. Depth violation
  • PO2 limit violation
  • Decompression violation
  • Gas switch would expose diver to PO2 > 1.6
  • Violation of deep stop

Technical Capabilities

The Geo 2.0 can handle two gas mixes with up to 100% oxygen levels. You can set the pO2 limits to be between 1.2 and 1.6 bar.

The maximum operational depth for Air/Nitrox diving is 100 m (328 ft) and for Gauge it is 120 m (393 ft). It also has altitude adjustments that it selects automatically based on your altitude before a dive. The maximum altitude that can be handled is 4,270 m (14,000 ft).

The algorithm is where all Oceanic personal scuba computers shine. They offer dual algorithms allowing to switch between them at will. This is a great feature if you dive with a buddy that has his own computer which calculates based on a specific model. You at least will be able to somewhat get the calculations in sync!

The algorithm you can select is either the Buhlmann ZHL-16c based PZ+ or a DSAT based model. The DSAT variant is better suited when you want to pick a liberal recreational dive algorithm. The Buhlmann algorithm is more conservative. You also can adjust the conservatism of either of the calculation models by yourself to achieve a more conservative dive profile.

When used as a daily watch you can set the Time mode. All background calculations and measurements will be stopped and you can use the Geo 2.0 like a standard wrist watch.

Dive Log and Connectivity

The dive log is somewhat limited. You can save dive data for up to 24 dives. Data sampling can be set to either happen at 2, 15, 30 or 60 second intervals.

You can transfer the data from your dives to your computer. There is an optional connector required and you can then analyze your dive data on your computer to review dives and/or plan future dives. The Geo 2.0 also has a quick select of the last dive so you get a fast view on the data without having to search through the menu.

Missing Functionality

Being an entry-level to mid-range diver computer, the Oceanic Geo 2.0 is certainly missing some features. You don’t get air integration and no built-in compass. This are features you can get and expect from higher-end devices which then also cost you a lot more money.

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  • Easy to navigate with 4 buttons
  • A range of audible and visual alarms
  • Watch sized display showing all data required in one view
  • Four operational modes for Watch, Air/Nitrox, Gauge and Free Diving
  • Two gas mixes between 21% and 100%
  • PO2 limits adjustable from 1.2 to 1.6 bars
  • Two different algorithms with additional conservatism settings
  • Max. operating depth 100 meters/328 feet for Air/Nitrox and 120 meters/393 feet for Gauge
  • Automatic altitude adjustments up to 4,270 m (14,000 ft)
  • Selection of imperial or metric mode
  • Dive log with capacity for 24 dives
  • Log sampling rates selectable at 2, 15, 30 and 60 seconds
  • User switchable battery
  • Four different color combinations
  • Limited warranty of 2 years

Pros and Cons

There’s not much you’ll be missing with regards to features when you compare the Oceanic Geo 2.0 with other scuba computers in the same category. You won’t be able to grow the capabilities of this device over time as you can’t add for example air integration. However, you do get a solid diving computer with a complete set of features that satisfy the needs of beginner and recreational divers.

The highlight of the Geo 2.0, as for all Oceanic dive computers, is that they offer two different algorithms. This allows you to pick a more liberal or conservative calculation model while you additionally can adjust the conservatism settings for the algorithm that you picked.


  • Easy to learn and use navigation with 4 buttons
  • Dual algorithms with additional conservatism settings
  • Four different operation modes (Watch, Air/Nitrox, Gauge and Freedive)
  • Two gas mixes
  • Ability to switch gases during dive
  • Automatic altitude adjustments
  • The capabilities you need as a beginner or mid-level recreational diver


  • Limited screen real-estate as it is sized as a wrist watch
  • Logbook on the smaller side
  • No possibility for air-integration

If you are a beginner of mid-level diver then this is without a doubt a great dive computer. It offers the right set of features you will need and some more. If you require more sophisticated features like air integration then this is not the right device for you.

Where to Buy?

You will usually get the best price and service through Amazon. Click the button below to find the current pricing and check further reviews.

Customer Feedback

Overwhelmingly, you only find great reviews online. Divers that bought this device are happy. Most anyone is impressed with the features offered and specifically being able to select between two different algorithms. This helps tremendously if your dive buddy uses a different brand as you can pick an algorithm that nearly matches your buddy’s. This way you don’t have to constantly wonder whether his or your alarms going off are the right ones!

Geo 2.0 from Oceanic in White and Seablue


The comparison below highlights a few of the differences between this diving computer and the Cressi Giotto and the Suunto Zoop Novo.

Suunto Zoop Novo

Oceanic Geo 2.0

Cressi Giotto

Suunto Zoop Novo Lime
Oceanic Geo 2.0 in Titanium with slate blue ring
Mares Smart Dive Computer - Black/Red

Max. Depth

80 m / 262 ft

80 m / 262 ft

120 m / 394 ft

Nitrox Capable

Free Dive Mode

Gas Mixes


(Oxygen 21 - 50%)

  2 gases

(Oxygen 21 - 10%)

  2 gases

(Oxygen 21 - 99%)














Log Size

~ 140 hrs

~ 24 dives

~ 70 hrs

Visual Alarms

Audible Alarms

Battery Life (Avg)

1.5 years avg

1.5 years avg

1.5 years avg

For more information you can check out our review of the Cressi Giotto as well as the review of the Suunto Zoop Novo.


The Oceanic Geo 2.0 is a great scuba dive computer for a recreational diver that wants to also use it as a daily watch. It’s fully featured to satisfy the needs of a beginner to mid-level diver and is priced right.

Being sized as a wrist watch reduces the available screen size. It’s still capable to display all important information in one screen but the data is not displayed as large as it is on an oversized version. Displaying any data as a bar graph definitely shows the limits of the small screen.

It is amazing that Oceanic packed their dual algorithm technology into such a convenient and small device. There was and is no compromising on this end and on safety features due to the size.

Whom is it not for?

You’ll have to look upwards when looking for additional features. These will cost a bunch more and you will have to ask yourself whether you truly need those features. For most divers it’s perfectly fine to have a console with a pressure gauge and a compass in addition to a wrist scuba diving computer.

If you do require those higher end features then have a look at the Oceanic OCi that offers everything you need. Alternatively, you can then also check the Suunto Vyper Novo which also offers a complete set of features at a reasonable price.

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