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Vytec DS Continues The Range Of Accurate And Reliable Suunto Dive Computers

Vytec DS Continues The Range Of Accurate And Reliable Suunto Dive Computers

Suunto Vytec DS is a multitasking hoseless air-integrated dive computer that meets not only recreational, but technical diving requirements too. 3 Nitrox mixes, 3 dive modes, wireless air integration, Dive Simulator and user replaceable battery - it's only a small number of key features of this user-friendly dive computer.

General Information
User Interface
Your Review



Suunto Vytec DS is dive computer that may be welcomed by advanced recreational and technical divers because of its multigas capabilities and optional wireless air-integration. But even if you are a beginner and thinking about fast growing in scubadiving career – you may consider this dive computer as a reliable ‘buddy’ for your diving adventures!

It has plenty of features, which beginners won’t need right away, but at the same time, this dive equipment is user friendly and has well written manuals, so if you are a beginner with great plans for the future – do not be afraid to invest in this advanced diving instrument!


Suunto Vytec DS Features Card

Copy this Suunto Vytec DS Features & Alarms Card for your Reference and Share with your friends and buddies!



Benefits of using Suunto Vytec DS dive computer

  • you will have perfect main dive computer that supports recreational and technical diving;
  • you will master all skills with this instrument quickly, thanks to its intuitive menus, interface, and user documentation;
  • you will be able to customize Suunto Vytec DS dive computer in many ways to adjust it for particular needs;
  • you will be always aware of your air consumption thanks to wireless air integration;
  • you will by paying very reasonable amount of money for Suunto Vytec DS








User Interface
3 buttons
Dive Modes
Air, Nitrox, Gauge
Suunto RGBM
Number of Gas Mixes
Air, 21% - 99%
0.5 - 1.6 bar
Air Integration
Safety Stop (SS)
Deep Stop (DS)
Conservative Factor
Altitude adjustment
A0/A1/A2 (range from 0 to 3000 meters)
Gas Switching
Dive Planner
9 - 45 meters
Logbook Capacity
36 hrs with 20 sec sampling rate
Max Operational Depth
80 meters
Backlight duration
ON/OFF/5 - 30 sec
Sampling Rate
10/20/30/60 sec
User Replaceable Battery
Data Retention or battery 'hot swap'
PC Interface
2 years










Suunto Vytec DS dive computer has 3 buttons on user interface: MODE, PLAN, TIME. And to learn how to use them and what to expect should not be very difficult task even for newbie, not saying about mature diver here!


Likewise Suunto Cobra, this Suunto computer has 2 Bar Graphs and they are shared between functions and modes (actually whole display layout is very similar to Suunto Cobra and locations of the control buttons are the same).
Below I gave short descriptions each of them to make it clear for you.

Left side Bar Graph is shared between Consumed Bottom Time (similar meaning to Nitrogen Tissue Loading Bar Graphs in Aeris and Oceanic dive computers), Oxygen Limit Fraction (OLF), and Mode Definition displays:

  1. Consumed Bottom Time (CBT) Bar Graph – it is graphical representation of No-Decompression Time that you have. As you stay longer and go deeper – your body absorbs nitrogen more and this bar graph adds new segment each time your No-Decompression time decreases. It has 3 coloured zones – white, grey, and red. White zone – is No-Decompression zone; Grey zone means that you have less than 5 – 10 minutes left of No-Deco Time; and when segments hit Red zone – your No-Deco Time becomes ‘zero’ and No-Deco dive becomes Decompression dive;
  2. Oxygen Limit Fraction (OLF) Bar Graph – represents oxygen toxicity when diving with Nitrox.
  3. Mode Indicator Bar Graph shows corresponding segments for modes - Memory, Simulation, and Set


Right side Bar Graph is shared between Ascent Rate, Battery Status, and Logbook Page Numbering:

  1. Ascent Rate Bar Graph – it is your ascent speedometer, if you ascent faster than allowed – dive computer will give you all set of segments with message SLOW and alarm;
  2. Battery Status Bar Graph – all 4 segments mean that battery is OK, and less number of them means that battery needs your attention or maybe even replacement;
  3. Logbook Page Numbering – when you view your logs, this indicator shows you page number of Vytec DS logbook by displaying certain segments (4 pages of Logbook – 4 segments displayed one by one from top to the bottom)







Before diving we need to adjust our time, preferences, and parameters for diving. Settings of Suunto Vytec DS and Cobra are similar to each other, but still have few differences. Vytec DS has 3 nitrox gas mixes to set, Deep Stops, different FO2 and PO2 adjustments, and, of course, wireless integration.


Suunto Vytec DS Settings Card

Copy this Suunto Vytec DS Settings Card for your Reference and Share with your friends and buddies!


This Suunto dive computer has very useful feature – On-Unit Dive Simulator. This function is a great help for you to get familiar with dive computer! You may have a ‘virtual’ dive and watch how Suunto Vytec DS works in different dive scenarios and how your dive profile will look like with all displays, warnings and alarms.

If you want to plan your dives ahead – just use Dive Planner and Dive Planning Simulator. First one can be called up during the Surface mode by pressing Plan button, and it calculates your No-Decompression limits at range 9 – 45 meters; the latter may be accessed from Simulation mode and it shows the present No-Decompression limits and has possibility to add surface time between future dives.


After we did all of that, and before actual dive, we need to activate desired dive mode, Vytec DS will do pre-checks, and then – nothing will stop us from jumping into water!







Suunto Vytec DS has very easy to read display – all digits are clearly seen and intuitive. If you have display protector – you may have minor difficulties to see the numbers that are located at the bottom of the screen, because edge of the display protector sits very close to them and to resolve this – just change an angle of view.


Suunto Vytec DS: Diving With Air & Nitrox


Suunto Vytec DS NO-DECO Card

Copy this Suunto Vytec DS NO-DECO Card for your Reference and Share with your friends and buddies!


Vytec DS, as well as other Suunto dive computers, has Bookmark function. You may use it if you need to store profile data in the unit memory for further downloading to PC.

It has two types of Safety Stops – Recommended and Mandatory. You will get Recommended Safety Stop prompt for every dive deeper than 10 meters. And if you miss it – no penalty time applied.
But Mandatory Safety Stop should be completed, because it is prompted if you ascend faster than allowable maximum rate at certain depth. If you miss this one – penalty time will be waiting for you in the form of extended surface time before your next dive!

Suunto Vytec DS has option to set Deep Stop to ON or OFF. If we enable Deep Stops function – we won’t get Recommended Safety Stop prompts, but Mandatory Safety Stops will be prompted anyway along with Deep Stops on your way up.

For each stop, whether it is Safety Stop or Deep Stop, Vytec DS has certain displays with all appropriate parameters and notations. And no worries there – this Suunto dive computer manages all those conditions perfectly!


Diving with Nitrox has its own particular features and settings. When you set Vytec DS for Nitrox – you need to enable desirable gas mixes, set theirs FO2s and PO2s. Dive computer will calculate and show you maximum operational depth according to those adjustments.

Also, as Nitrox has higher percentage of oxygen than normal air, there is a risk of oxygen gassing. So, Suunto Vytec DS calculates oxygen toxicity level and displays it in bar graph as Oxygen Limit Fraction (OLF).

During Nitrox dive, displays – main and alternative, look similar to displays when diving with Air, except few different values related to Nitrox dives. Here they are:

  • FO2 (when Air Time Remaining (ATR) becomes less than 30 minutes, FO2 is substituted by ATR);
  • PO2;
  • Maximum operational depth (MOD) according to FO2 and PO2;
  • OLF Bar Graph, instead of Consumed Bottom Time (CBT) Bar Graph on the main display (CBT can be seen on the alternative display)


Dive computer may give you alarms if maximum operational depth for preset PO2 value was exceeded and if oxygen toxicity level reached 80%.

If you set dive computer for 2 or 3 Nitrox gas mixes – Suunto Vytec DS would allow swapping gas mixes during a dive, if preset PO2 values weren’t exceeded.


You may exceed your No-Decompression limits – time and depth during a dive. If it happened – Vytec DS would activate Decompression dive mode and all calculations would be related to that particular mode.

Suunto Vytec DS has Continuous Decompression feature that allows us to perform decompression within the certain range of depths - Decompression range. It starts from the ‘floor’ (deepest depth where deco stop time won’t increase) to the ‘ceiling’ (shallowest depth) and decompression is done between them.

In Decompression mode this Suunto computer will display following data related to decompression stops:

  • guiding arrows (for your correct ceiling depth and ceiling zone);
  • Ascent Time in minutes (total time to surface, including time to reach the correct ceiling, time to stop at the ceiling, Mandatory Safety Stop (if any), time to surface after ceiling);
  • Ceiling depth;
  • Dive time;
  • max depth reached during a dive


I listed here only data related to Decompression, but, of course, other information regarding to current condition is available, like current depth, tank pressure, temperature, etc.

If you missed correct decompression ceiling and ascended above it, Vytec DS would give you an audio alarm with corresponding icons, your current depth and ceiling depth values, and Error notation. It means that you have only 3 minutes to correct you position and return to ceiling depth displayed or a bit below.
If you continue to violate decompression – dive computer will activate permanent Error Mode and will work as a depth gauge and timer only. You must not dive for at least 48 hours then!


Suunto Vytec DS: Diving In GAUGE Mode

Gauge mode is the next dive mode of Suunto Vytec DS dive computer. If set for Gauge mode – this Suunto dive computer won’t calculate nitrogen and oxygen loadings and it will work as a depth gauge and timer.

Dive main display has following data (below I made a summary from main and alternative displays):

  • current and maximum depth;
  • Elapsed Dive Time (EDT);
  • Air Time Remaining (ATR);
  • tank pressure;
  • Ascent Rate Bar Graph


Also in Gauge mode it is possible to stop, reset, and start Dive Timer and make Bookmarks.

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After we dove with Air, Nitrox, and in Gauge mode – it is time to resurface and give a rest to your ‘buddy’ Vytec DS!

But before we let it rest for a while, let’s perform few simple things, like check out our Dive Logbook, History, or download data to PC.

All 3 modes mentioned above are accessible from Memory mode. Below are the brief descriptions each of them:

  1. Logbook stores approximately 36 hours of diving data, and has 4 pages of the very detailed information.
  2. History mode is a summary of all your dives. It stores information of 999 dives and 999 diving hours and shows the maximum depth reached, total number of dives, and total accumulated dive hours.
  3. PC Data transfer allows you to connect Suunto Vytec DS dive computer to PC and download your Logbook data, organize your diving records, view and print logs and diving profiles.







Suunto Vytec DS: What Divers Say


  • good for primary dive computer;
  • large display and ease of use;
  • easy to switch gas mixes, great for technical mixes;
  • wireless works perfect;
  • intuitive and smart dive computer;
  • great value for money



  • reported issue with depth-gauge calibration - actual depth may be very different from what is displayed;
  • only 1 transmitter supported;
  • no integrated digital compass


After comparing all Pros and Cons and reading controversial opinions of our reviewers, we may make a conclusion about Suunto Vytec DS.

Frankly speaking, I have never heard from any user I met something bad about Vytec DS. Only things were told off – optional PC data cable and only 1 transmitter supported for multigas dive computer.

As a whole – Suunto Vytec DS meets the requirements not only recreational, but technical diving too (I’m not saying here using trimix!), it is reliable, friendly, easy to program and easy to understand all data it shows, perfect manuals, steady wireless.


Suunto Vytec DS dive computerSuunto Vytec DS
Dive-Computer-Wizard Rating
golden star golden star golden star golden star golden star


From the specs, features, and price point of view – Suunto Vytec DS is a gem! And if you need multigas dive computer that has wireless air integration – just take whole package, and save some money for your other dive equipment!



Add comment
Lucas, 5 November 2013 08:41
Great Dive Computer But Losing Wireless Time-To-Time

Suunto Vytec DS is great and has all the features and functions needed for diving recreational and technical with air, nitrox, or gauge. It was easy to learn how to set up and operate - just took me feeling comfortable with it after couple of days. The display has plenty of data, it's large and even small digits are seen very well.

Gas mixes can be easily switched between during a dive, just need to be careful to mark my tanks correctly!

Sometimes dive computer was losing wireless signal though. I can't confirm that it was unreliable, because dive computer picked it back in 5-7 seconds, but sometimes it was annoying. So that's why I always had backup guage that helps me greatly.

It is a conservative, like other Suunto dive computers, even with RGBM attenuation. Also it lacks of integrated digital compass, like Suunto Vyper Air.

But overall - it's a great dive computer, that allows me diving with technical mixes and very reliable! Also integrated Dive Simulator helped me a lot to get to know Suunto Vytec DS and master it over the time!

Shawn, 24 May 2013 10:25
Suunto Vytec DS Is User Friendly And Very Thorough Dive Computer

I've been using Suunto Vytec DS since 2009 and logged more than 300 dives, and still have no issues whatsoever!

It is very durable and extremely reliable device, even there are lots of new and flashy models. I selected Vytec DS because it had all of the features I needed, friendly user interface, like all Suunto dive computers, wireless air integration, and many user adjustable settings.

I'm diving with full 3 mixes setup, and system works seamlessly. Suunto Vytec DS has large display with perfectly seen data at any conditions.

This dive computer is pretty bulky, but I love the feeling when this thing sitting on my wrist! I never exchange it for something else - Vytec DS is my perfect buddy!

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