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Dive computer reviews are perfectly organized and consist of fully researched information and ratings of Aeris, Cressi, Mares, Oceanic, Sherwood, Suunto, Tusa, and UWATEC/ScubaPro brands.  In Catalogue Section you may compare any models side-by-side and select dive computer according to your needs! Join thousands of happy customers!


Mares Nemo Apneist - Elegant Freedivers Buddy

Mares Nemo Apneist - Elegant Freedivers Buddy

Mares Nemo Apneist is a dive computer dedicated purely to freediving. Very easy to set up and very comfortable to dive with! You will learn it quickly and get ready for diving in no time!

General Information
User Interface
Your Review



Mares Nemo Apneist is a purely freediving computer as it is understood from its name. Mares produced this model with all recreational freedivers' needs in mind and indeed we got very elegant dive watch computer. It has mimimum settings and allows the user learning it quickly and become proficient with it in no time! On top of that - diver may wear it onshore as a wrist watch, as it has all nesessary functions.

It has very easy to understand menu, 4 control buttons, and of course only 1 dive mode - FREEdive, which means that Mares Nemo Apneist doesn't calculate any NDLs.


Mares Nemo Apneist Features card

Copy this Mares Nemo Apneist Key Features & Alarms Card for your Reference and Share with your friends and buddies!



  • if you are a freediver, benefits are obvious - you will get a dive computer dedicated only to freediving;
  • you will get instrument with minimal adjustments - time settings and freedive alarms, no any high-tech stuff;
  • connect Mares Nemo Apneist and your PC optically - no more problems with USB cables that must be pushed and hold steady to make a proper connection;
  • you will have elegant digital wrist watch to wear it onshore








User Interface
4 buttons
Dive Modes
Altitude adjustment
Logbook Capacity
maximum 300 dives
Max Operational Depth
150 meters
Backlight duration
4 sec
Sampling Rate
factory preset
User Replaceable Battery
Data Retention
PC Interface
2 years










Mares Nemo Apneist user interface and buttons locations are similar to Nemo Excel, but it is only the thing that makes these two dive computers look the same. Apneist has 4 easy to press control buttons, easy display layout, and not many numbers to read.

Display devided into two sections - main area and bar below it. Depending on mode you are in - you may see either time, or Set menu parameters, or depth during a dive on main part of display; and bar below the main area can be customized to see more data, related to Set, Time, Dive modes.







Mares Nemo Apneist has 3 menu operating modes: Main menu, Dive menu and Time menu. From the Main menu you can access Dive and Time menus or set dive computer to OFF to save the power when it is idle.

Using Time menu operations you will be able to set following parameters:

  • time & date;
  • alarm;
  • alternate time;
  • units of measurement;
  • stopwatch


Dive menu has following parameters to set:

  • water type: fresh/salt;
  • units;
  • maximum dive time alarm;
  • maximum depth alarm;
  • surface interval alarm;
  • depth intervals alarm


As you may see there are not many parameters to set and with the help of perfectly organized user manuals and intuitive dive computer interface you won't have any troubles doing that!

From Dive menu you may also access PC mode and Logbook.







After we set all parameters with ease - we are ready to do first submerging!

After Mares Nemo Apneist senses depth of 1.2 meters - it turns Dive mode and start counting time of your dive. During diving all functions get disabled except backlight. To activate it - press button for 2 seconds and display will be lit for 4 seconds (backlight is factory preset).

Backlight is strong and digits are clear to see at any angle and depth.


Mares Nemo Apneist Freediving card

Copy this Mares Nemo Apneist FREEdiving Display Card for your Reference and Share with your friends and buddies!







On surface Mares Nemo Apneist activates Surface mode and makes available following functions:

  1. Logbook mode stores up to 300 dives and consists of few pages of dive data, history, sessions, and profile;
  2. Upload dive data to PC by using special software and optional optical IRIS interface;
  3. Set menus: Time & Dive;
  4. Dive Lock - functions that disables dive activation mode even if you take dive computer into water (swimming in a pool, for example);
  5. Switch OFF dive computer


Mares Nemo Apneist doesn't have user battery replacement option. This is not very convenient, especially if you are on holidays somewhere on the islands without any dealer's shop. So, as I guess, few handymen will find a way to replace battery themselves!







Mares Nemo Apneist: What Divers Say


  • easy to read display;
  • perfect user documentation;
  • easy and quick set up;
  • not bulky to wear it as a wrist watch onshore



  • high price for dive computer;
  • no user replaceable battery;
  • IRIS interface is overpriced

Mares Nemo Apneist has only two modes: freediving computer or wrist watch. And you can use both of them with great success! Mares supplied it with very well written user manuals and designed this instrument with very intuitive interface and reasonable number of functions that cover freediving activities and normal everyday life!

It doesn't have as many special functions as Aeris F.10, for example, and in addition it costs a bit higher than F.10.

We didn't find any problems with Apneist underwater or on surface. There is only one thing that we can not comment - interface between Mares Nemo Apneist and PC - we didn't have IRIS optical unit to interconnect them.

And again - battery replacement question. As Mares stated - battery must be replaced only in authorized shop. So, before investing in this dive computer - consider this as well!


Mares Nemo Apneist dive computerMares Nemo Apneist
Dive-Computer-Wizard Rating
golden star golden star golden star golden star half star


Everything else worked great: display readouts, backlight, audio alarms, pressing buttons. And onshore we may use it as a wrist watch - it's not bulky, sits very comfortable and very convenient to use - even had few compliments from people.

Think investing and getting Mares Nemo Apneist if you are a freediver or going spearfishing - it will be a great buddy for you!



Add comment
Dylan, 9 May 2013 14:21
Great For Spearfishing

Mares Nemo Apneist is designed only for freediving and spearfishing. So don't look for algorithms and No-Deco limits computations!

I've bought this dive computer as my companion for spearfishing. It works as it should - only necessary dive data on display.

I'm very satisfied by its performance, except only one thing - for this price it doesn't have user replaceable battery option (as Mares said). But I'm handyman - will figure out how to change battery by myself!

JayM, 8 March 2013 10:59
Has Everything That You May Expect From Freediving Computer

Just had Mares Nemo Apneist for few dives month ago. Everything works perfectly.

Dive computer is very intuitive - I was able to set up without even reading user manual, as it didn't have big number of parameters to set, fewer than Aeris F.10 freediving computer.

It has large and easy to read display and alarms worked properly. It was very comfortable to dive with and wear onshore. I can recommend Mares Nemo Apneist to freedivers of course!

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