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Questions & Answers

John V : Can the Cobra 3 use the same quick disconnect fitting as the Cobra 2?BRIAN M : Yes, the Cobra 3 can use the same quick disconnect fitting as the Cobra 2.GEORGE S : Yes, the quick connect fittings are identical.
Shopper : Does it have a compass also?PETER K : Yes, it has a digital compassWILFREDO O : Yes it does!JEFFREY L : The cobra 3 has a compass built in, but you must switch to the compass mode to use it. The compass mode can be activated from the dive mode or the time mode. I had a problem with my unit. I could not switch modes but the battery check when the unit was turned on gave "battery ok". I changed the battery anyway, it now works.MARK P G : Yes, it does
Shopper : Can you get this with a braided type hose?JEFFREY L : My Cobra 3 came with a braded hose with the quick disconnect feature. Suggest you check with the manufacture on this item.Steve S : No, this computer does not come with a braided hose.MARK P G : This computer has a unique swivel type fitting that it uses to connect to the air hose. I tried to find a braided hose that will work with it, but I was not able to find one.
miguel j : Hi, Is this the next model upgrade to the original cobra? Is there also a cobra 2 model out there along with this cobra 3?Steve S : Yes, the Cobra 3 is the newest in the Cobra line.BRIAN M : The Cobra 2 was a short-term product with many of the same features as the Cobra 3 (integrated compass) but with short-comings that were fixed in the Cobra 3.LAWRENCE M : The Cobra 3 replaces the Cobra 2. A significant difference is the improved compass in the Cobra 3, which tolerates much more tilt than the Cobra 2.
Chris M : Does this DC come with a screen protector?YAN G : Yes, it does come with one.

Reviews about this item

Review Summary

2022-12-31T12:15:45

Rated 1 out of 5

I?m so Done With Suunto

I have owned my Suunto Cobra 3 for about 6 years with 50 dives on it. I?m a rec diver, mostly fresh water and take very good care of my gear. Had the battery serviced a couple of times at my local dive shop in Toronto. Recently the depth sensor starting providing erratic readings. I tried contacting Suunto in Canada (a very frustrating process) only to be told mine is out of warranty - which I expected. I didn?t expect to be told it can?t be fixed but they would give me 20% a new one. How generous?. I have also learned that there is a class action suit against Suunto in Ontario. Although both sides have agreed on a settlement, I can?t find out what it is other than Suunto will add me to the claim and consider looking at my Cobra. Did I miss something. I have another Suunto product , a watch, which has had the strap replaced 3 times. I finally just tossed it. I am sure there are other companies who want my business which have a greater customer focus. I?m done with Suunto?

Peter B.

2021-09-30T14:02:42

Rated 5 out of 5

Suunto Cobra3 with QR

Suunto Cobra3 Air Integrated with QR hose is a great computer, absolutely love the quick release so I can take my computer with me after boat trips while still leaving most of the gear on the boat for the next day. I?ve been diving Suunto since i started buying all my own equipment in 2011! Still have my first computer Viper console and no issues other than having to change the batteries. Highly recommend

PATRICIA S.

2021-07-12T16:43:02

Rated 5 out of 5

Excellent Dive Computer

Excellent Dive Computer. Just upgraded to this model after using the original for many years.

Joseph K.

2021-05-06T12:04:10

Rated 4 out of 5

A dependable computer

It is a dependable computer, but I suggest getting the one with the quick disconnect air hose. The reason is some operators want you to leave your gear on the boat if your are diving the next day. The operator will wash your gear in place. Take your computer and leave the rest of your gear on board. If you leave your computer and the connection that is water activated gets wet it will run the battery down.

JEFFREY L.

2019-11-01T14:42:56

Rated 3 out of 5

A good value -- this thing does a lot!

A little tricky to use, definitely not an entry level computer, but good display & lots of capabilities! No regrets :)

ERIKA P.

2019-05-26T23:01:30

Rated 1 out of 5

Sensor Issue

Just recently had my Cobra 3 go into a non-stop beeping in a simulated dive mode, and I can't stop it without removing the battery. The problem, the water pressure sensor apparently goes bad. Suunto said, sorry, it is irreparable! Really! I've always taken care of my gear, and when it goes bad, the manufacturer says sorry, can't fix it. I can fix it. I'll NEVER purchase another Suunto brand ANYTHING ever again!

TIMOTHY H.

2018-10-24T20:00:00

Rated 5 out of 5

Cobra3 functioned perfectly

Then it had accuracy issues with depth and stops. When I contacted Suunto - they immediately took care of the problem and that speaks volumes about a company. Kudos Suunto.

grieker

2018-04-03T20:00:00

Rated 5 out of 5

Excellent all round computer

I recommend it. If I had to find a fault it would be that the bleeps are a little faint underwater. Air integration is a brilliant feature and gives you accurate air time left readings. Nitrox levels are easily adjusted before dives. Robust case. Easy to read dial. It can also be used without the hose attached as a stand alone computer if you're travelling light and don't want to take your regs/hose on a dive trip.

SteveBlakemore

2018-01-12T19:00:00

Rated 4 out of 5

A fantastic and convenient all-in-one dive computer - with a few niggles

It's an excellent all-in-one tool including a compass and air integration - conveniently all in one instrument. It does everything it's designed to do but it takes a few dives to familiarise with the functions and readouts and maybe I'm just a slow learner, but when you're underwater you can't refer back to the manual, although divers already familiar with the Suunto interface shouldn't have any issue. Due to my deteriorating eyesight - even with reader lenses in my dive mask - I struggle to read the smaller digits. For people with good eyesight, this won't be a problem. Cons: The plastic protective screen cover scratches very easily when your gear is being handled and is a nightmare to remove or insert. When it gets badly scratched, you will eventually have to change it to continue to clearly see the display - at your own cost and they're not cheap. The Cobra is attached to your first stage regulator with a hose, so you have to find a happy place for it where it's easy to reach. Standard hose clips are too wide to fit the thinner hose that's supplied with this computer. Most people will probably pass it through their BCD waist strap so it lies against the stomach but I find this position a little too short for quick and easy reach. I usually just leave it to dangle loose in front of me or hold it with my left hand but it's extra work making sure it doesn't fall by the wayside or dangle along underneath, damaging the reef below. I always dive with a big camera housing and I don't need the extra hassle of constantly worrying about where to place my computer. In conclusion it's an excellent instrument and certainly other people whose bodies are built different to mine won't have the same positional or visual issues that I have. It works with my iMac but not particularly well and I really wish Suunto could fix that.

raoulcos

2017-09-03T09:32:52

Rated 3 out of 5

Computer works, but as a few issues

I been using for about 4 years now, computer works good and love the air integration. I don't trust the built in compass so I added a real compass to my console. But the cobra3 has issues downloading, when new it took about 2 to 4 hours for the DM5 software to down load my dive information, just thought it was still wet. Over the last several months it has been taking a week or longer connected to the computer to down load. Called Suunto tech support an said its a know issue and finally gave up waiting for them to fix. Found third party dive software (Subsurface) for free and now I can download within 1 minute every time I connect, and the software is so much better. So sad that Suunto cant provide software that works with there own computer that works. I'm giving this one to my wife and just bought my self a Shearwater Perdix AI and LOVE this computer, the on board compass is amazing, so easy to see the display even in low light conditions.

HERBERT R.

2016-05-02T15:29:38

Rated 2 out of 5

Great unit for about 100 dives - then junk

I have 3 Cobra 2's and love them. Both are over 10 yrs old. I got the C3 for the small profile (digital compas). Right off, the tank pressure was never displayed as a default - had to toggle to it via button, which is annoying. After about 10 hrs of use, the software crashed. Stays in dive mode all the time with warnings to ascend to a 250' ceiling - and buttons are useless. Have to remove battery to shut it up. Compass is fixed and won't calibrate. Dealer says this is common for these units at about 4-5 yrs old no matter how much use and the Mfg. will do nothing. The program itself is fantastic, albeit extremely more conservative than any of the 4 other brands I have. For the price, I expect this to last longer so I'll never buy another.

MIKE S.

2014-08-31T20:00:00

Rated 5 out of 5

Perfect item

Great delivery time

David M.

2014-08-23T20:00:00

Rated 4 out of 5

be careful if you change the battery

I think this is an excellent instrument with great customer support; it is a bit complicated to access the different menus at first. I changed the battery once with no problems - the second time I changed it, I inadvertantly pinched the o-ring (as another reviewer stated) and it flooded on the first dive - however, Suunto service was able to repair it for $200 (it was out of warranty). OTOH, the compass remains a mystery to me!

bubbycasey

2014-08-12T20:00:00

Rated 3 out of 5

Leaked and Failed on First Dive

Delivery was within expected dates and, so far, customer service has been cooperative in handling the return and credit.

Tom

2014-06-10T20:00:00

Rated 4 out of 5

Awesome Dive Computer

I lost my D6i a few weeks ago. Realized I was not responsible enough to have a wrist computer. Now that I have a hose integrated computer I will not have to worry about losing it again. The great thing about changing over is that the cobra's functions are exactly the same as the D6i.This allowed me the freedom of not having to be educated on a new computer.Being that I am a cold water diver I loved how the buttons were large.I wear 5 mm gloves and it was always hard to press buttons underwater on the D6i.

Puget W.

2014-01-26T19:00:00

Rated 4 out of 5

Nice Compu

Good purchase, good price, everything works well…

andresladoa

2012-03-28T20:00:00

Rated 5 out of 5

great computer

clear view, easy to change screens, Still need to work on accessing the planner and quick look at the reccomended surface interval

Dave d.

2011-06-02T20:00:00

Rated 5 out of 5

Cobra 3 with quick disconnect

Spent a week in Cozumel right after I purchased this. I used the 50% RGBM. It worked great and was similar in dive times/No Decompression times as other computers. I had a variety of computers to compare with my friends I was diving with. We all had very similar data. The 50% RGBM is a great improvement for the Suunto Cobra 3 if you want a less liberal computer. Depth seemed to be accurate within 1ft. of all other computers in my party. I say this because some have their computers at chest level, while others have theirs at waist level. The quick disconnect is a great feature, especially if you need to remove your computer to keep it out of the sun. I don't like to keep my computer in the sun for extended periods of time, so it is easier to just remove it temporarily without removing your complete rig from your tank. After I was able to purchase the download cable, the data was a smooth transition from the Cobra 3 to my laptop for a more indepth look at the dive data.

TRAVIS P.

2010-11-21T19:00:00

Rated 4 out of 5

Great computer

Delivery was extremely fast. I was amazed that it arrived in about a week after ordering it, considering that I'm at an FPO address. Usually our stuff takes forever. Definitely happy with the service that I've received for the last 2 major orders I've placed.

GARY H.

2010-10-18T20:00:00

Rated 5 out of 5

I woud buy this computer again

Warm water

Rubens V.

2010-06-19T20:00:00

Rated 3 out of 5

GOOD NOT PERFECT

IT TOOK FORTY TRIES TO CALIBRATE COMPASS,...REALLY, THE PRESSURE READOUT IS TO SMALL FOR ME(I DO USE READING GLASSES)ALSO IT IS LOCATED NEAR THE PROTECTIVE COVER,BLOCKING THE VIEW OF THE PRESSURE READOUT WHEN HELD AT CERTAIN ANGLES,THIS PRODUCT MAY WORK FOR MANY AS FOR ME ..NO

THORFX

2010-06-06T20:00:00

Rated 1 out of 5

TABLES WAY TO CONSERVATIVE

The tables used are way to Conservative. We have a Sherwood Wisdom that is easier to read & operate. not as many functions. Using them side by side on 22 Dives in Bonaire the Suunto went in to a decompression mode way to soon. Then it would not let me dive in the AIR mode until it was out of the water for 24 hours. The Wisdom said we were fine. We keep diving for 4 days after that with no problems using the Wisdom as the reference & computer. If you want the Computer to cut your diving SHORT Buy the Suunto. Not for me. We dive 3-4 dives a day. The Suunto said no fly for 18 hours longer than the Wisdom. We flew a 6 hours flight & were home for 6 Hours before the Suunto said we could fly.

1973Diver

2010-02-28T19:00:00

Rated 5 out of 5

The BEST Dive Computer

This is a great dive computer. It has all the functions you would need, then some. It is perfect for the rec diver, and has the ability to do full deco if you loose track of time. If you want to be a safe diver, the Cobra 3 is the computer for you.

Cephasiii

2010-02-16T19:00:00

Rated 5 out of 5

I would buy this product again and again

GREAT 3D COMPASS

DRAGON S.

2010-01-26T19:00:00

Rated 1 out of 5

difficult to operate

This is, by far, the most complicated dive computer I have ever seen or used. Suunto factory service also leaves much to be desired. If you want something that is easy to operate, look at a computer that has no more than 2 buttons. There are many computers that can run circles around the Suunto and are MUCH easier to program and operate.

hunter

2009-11-18T19:00:00

Rated 5 out of 5

Great product

With navigation it is the best. With it 45 degree angle makes it much easier to read.

Q

2009-10-08T20:00:00

Rated 5 out of 5

BUY IT NOW

Best computer you can get

PAUL T.

Suunto Cobra 3 Specifications

  • Algorithm

    Bruce R. Wienke, BS, MS and PhD, Reduced Gradient Bubble Model (RGBM)

  • Audible Alarms

    Yes

  • Depth Display

    330' (100 meters)

  • Altitude Adjustable

    Yes, Up to 10,000' (3,000 meters)

  • Operating Modes

    Air, Nitrox

  • Back Light

    Yes

  • Memory Capacity

    42 Hour Profile and Logbook

  • Time, Date & Temperature

    Yes

  • Imperial/Metric Display

    Yes

  • Power

    3 Volt CR2450 Lithium-Ion Battery

  • Air Integrated

    Yes

  • Pressure Display

    4,000 psi (300 bars)

  • Digital Compass

    Yes

  • UPC Code

    045235906314

14 Accessories for Suunto Cobra3 Air Integrated Computer with QD Hose

  • All Accessories (14)
  • Batteries & Battery Kit (1)
  • Computer Accessories (13)

About Suunto Cobra 3

FEATURED REVIEWS

Excellent all round computer

By SteveBlakemore

I recommend it. If I had to find a fault it would be that the bleeps are a little faint underwater. Air integration is a brilliant feature and gives you accurate air time left readings. Nitrox levels are easily adjusted before dives. Robust case. Easy to read dial. It can also be used without the hose attached as a stand alone computer if you're travelling light and don't want to take your regs/hose on a dive trip.

The BEST Dive Computer

By Cephasiii

This is a great dive computer. It has all the functions you would need, then some. It is perfect for the rec diver, and has the ability to do full deco if you loose track of time. If you want to be a safe diver, the Cobra 3 is the computer for you.

With integrated digital compass, air integration, and gas switching, Suunto Cobra3 simplifies your diving experience because all the information you need relating to depth, time, tank pressure, decompression status, and direction is available on one easy-to-read screen. The Suunto Cobra3 dive computer has it all without overwhelming you with tools you'll never need or use One of the Cobra3's bragging rights is the 3-D compass, which will quickly become your new best friend; its ability to give a true reading, even at a 45° degree angle, will make keeping your heading easier than ever The four-button operation makes the Cobra 3 a snap to use; even if you're wearing thick dive gloves It is air and nitrox compatible and offers you every opportunity to make the most of your time underwater The Cobra 3 displays your tank pressure and remaining air time; two key features to keep you safe and below the surface as long as possible. The Cobra 3 graphs each dive profile and has a dive simulator, which offers you to run through your dive without getting your feet wet!

Navigating the Menu:
Suunto Cobra3 has four main operating modes - TIME mode (TIME), DIVE mode (DIVE), PLAN mode (PLAN), and MEMORY mode (MEMORY) as well as the COMPASS sub mode, which can be activated from either TIME or DIVE modes. To toggle between the main modes, press the MODE button. To select a sub mode in DIVE, PLAN and MEMORY modes, press the UP/DOWN buttons. Simple, intuitive and user friendly the Cobra3. The Cobra3 uses the Suunto Deep Stop RGBM algorithm that offers continuous decompression reading and offers an optimal ascent time. The goal of Suunto is to keep you safe; with that in mind, they included the deep stop option as part of the Cobra3. The deep stop option includes additional stops between the diver's maximum depth and ceiling to allow divers to off gas safely while making an ascent. The computer has a 42 hour of diving logbook memory.

The Cobra3 provides audible alarms and notifications for dive time, maximum depth, tank pressure, high pO2, fast ascents, decompression ceiling violations. The Cobra3 has a back lite display which makes seeing your dive data easy during night and day dives. Cobra3 provides a depth display to 330' (100 meters), its clock can be set with a 12 or 24 hour format, provides temperature reading above and below the surface to 1.5°F (1°C) accuracy and is altitude adjustable up to 10,000' (3,000 meters). The computer can be programed for Nitrox mixtures from 21% to 99% oxygen and displays oxygen partial pressures from 17.4 psi to 23.2 psi (1.2 to 1.6 bars). The Cobra3 is powered by a user replaceable 3 volt CR2450 lithium ion battery. Note: The Cobra3 has a pressure readout of 4,000 psi (300 bars) with a maximum allowed pressure of 5,000 psi (360 bars). The Computer can be set for imperial (feet) or metric (meter) measurements. Computer comes with an owner's manual. For safety of your investment the Cobra3 is equipped with a quick disconnect hose fitting allowing you to disconnect the computer from the 7/16" threaded high pressure hose. This feature allows you to stow your computer separately from your regulator system and is convenient for logging and downloading dive information.

Suunto Cobra 3 Features

  • Suunto Cobra3 Air Integrated Computer with QD Hose:
  • Algorithm: Bruce R. Wienke, BS, MS and PhD, Reduced Gradient Bubble Model (RGBM)
  • Operating Modes: Air, Nitrox and Gauge
  • Programmable for 21% to 99% Oxygen Mixtures
  • Displays Oxygen Partial Pressures from 17.4 psi to 23.2 psi (1.2 to 1.6 bars)
  • Altitude Adjustable Up to 10,000' (3,000 meters)
  • Maximum Depth Display: 330' (100 meters)
  • 12 or 24 Hour Clock Format
  • Temperature Gauge to 1.5°F (1°C) Accuracy
  • Imperial/Metric Programmable
  • Decompression Stop Data
  • Audible Alarms
  • 42 Hour Profile and Logbook Memory
  • User-Replaceable 3 Volt CR2450 Lithium-Ion Battery
  • Back Lite Display, Easy to Read in Low Light & Night Conditions
  • 0 to 5,000 psi (360 bars) Display
  • Suitable for 4,000 psi (300 bars) Cylinders
  • Hose Thread: 7/16" with QD Fitting
  • Tilt-Able Up to 45° Electronic 3D Compass to Keep You-On-Course
  • PC Compatible
  • Owner's Manual
  • Quick Guide

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Dive computer with QD hose
  • True reading 3D compass
  • Two gas switching capability
  • Air, nitrox, and gauge operating modes
  • 42 hour logbook and profile memory

What's in the box:

  • Computer
  • HP Hose
  • Quick Disconnect
  • Owner's Manual
  • Quick Guide