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Photo Credit: Steve Diederich

Suunto 9 Baro Smartwatch


Last updated: 30-Dec-19


By Steve Diederich

Well, haven’t smartwatches come of age? Type “smartwatch” into Google and you can find literally hundreds that claim they will track your way to fitness and glory. Finally however, there are a select few that deserve their epithet “smart” and the latest offering from Suunto is out of the blocks with a gamechanger.

Every new product development should only be released if it is significantly better than its predecessor and/or its rivals. Suunto’s competition with Garmin in particular is tough and whilst the last Suunto Spartan failed to make the grade in my view, along comes the Suunto 9 Baro setting a new bar within this highly competitive genre, albeit at a premium price.


  • Intelligent battery modes that you can alter on the run
  • 80 sports modes (and the ability to create your own)
  • Barometer for more accurate altitude information
  • 81 grams (manufacturer stated)
  • 100m water resistant
  • RRP £539 (without heartrate belt)

First Impressions

You can’t help but notice that this is a substantial watch; a large legible watch face fits better on a larger wrist. Whilst it is functionally attractive, it isn’t a slim fashion item. A useable battery life requires a deeper housing to store those electrons, but more on the battery life later.

If you are familiar with the earlier Ambit range from Suunto, the “9” is almost identical in appearance and menu/button format; there have been slight tweaks to the bezel and to the silicone strap, the sapphire crystal touch screen is fast and sensitive even with slightly wet fingers.

Flip the watch over and there is the 3 LED HRM (Heart Rate Monitor) shared with the Suunto Spartan Sport. It comes in various colours and you can even get your signature printed on the rear… and if 81grams is too much weight for your wrist, there is even a titanium model.

The single impression you get of this watch however is that it is tough, really tough - there will be someone on YouTube driving a tank over the Suunto 9 and my money would be on the watch coming out in good shape.




There is pretty much nothing that an outdoors enthusiast would miss, just about every timed activity you could think of, 80 in total, from ski touring to fishing and pretty much every activity in between is covered within the activity options. If you can think of another activity (now there's a challenge) you can even configure it yourself on the watch or within the companion app.

Fitness functions included in the activity monitoring:

  • Step counter (7-day counter)
  • Calorie counter (and predictive calorie usage)
  • Activity goals (counts your base level calorie usage and exercise usage)
  • Instant Heart Rate
  • Daily Heart rate (shows 12 Hr heart rate including min/max)
  • Sleep Tracking
  • Peak Training Effect (measures high intensity impact relative to your fitness)
  • EPOC (Amount of oxygen required to recover from an exercise)

Menu navigation

I have used Suunto watches before and the “9” follows the same protocols through the menus that are straightforward and logical. The addition of a touch screen means that once you understand where everything is, the menu selection becomes even quicker and more intuitive.


The silicone strap is really comfortable, as we have come to expect from Suunto it stays stable on your wrist whilst not pinching the skin or ripping hairs gratuitously. Due to its bulk it initially feels a little awkward, however after a few minutes use, it wasn’t noticeable.


The screen is really sharp in terms of contrast and resolution, which makes casual glancing at your wrist a quick affair other than in bright sunlight. The display isn’t the brightest, however I am guessing that this is a concession to battery life. It would have been a smart option in my opinion to have put a reverse display function that didn’t require lighting but gave contrast to the screen.

Another nice feature of the screen is that you can lock it.  If you wear it on your right wrist this is a useful feature as the control buttons are on the right of the watch and if you bend your wrist, occasionally you can inadvertently activate the middle button.


Let’s start with the question everyone asks first.

Battery life

This is that Achilles heel of almost every smart watch, the more features and functions you load and run on the unit, the more battery life you are likely to use. Suunto have approached this in an intelligent way in my opinion – they have firstly given the “9” a hefty li-ion unit that claims up to 120hrs of continuous GPS usage and really cleverly they manage the drain on your watch intelligently by automatically adjusting this (can be manually overwritten) to optimise life on your run.

We managed a hefty 114hrs before the battery finally flaked, however this was in cold UK winter conditions. Some of that time I wore the battery away from the skin so I could see it on the outside of my clothes and this inevitably has an effect on battery life. When I wore it without using GPS and only the HRM, it lasted for 129 hrs and then it went into low power mode turning off the HRM and gave an impressive 147 hrs in total.


The top line figures do not tell the whole story - where Suunto have really done their work is on the AI.  To start with you can select your optimum usage, battery modes are specific to each sport you select. In running, when you go to start it shows you the estimated battery life with a mode selection:

  • “Ultra” setting (2 Minute interval GPS polling): reduces GPS polling to a minimum, dims the screen, reduces the timeout on the display brightness and turns off the HRM, touch screen, vibration notification and Bluetooth function.
  • “Endurance” setting (1 minute interval GPS polling): Gives more frequent GPS poling, low brightness on screen, HRM on, touch screen off, vibration notifications and Bluetooth on.
  • “Performance” setting: allows all functions with GPS at max, reduced screen brightness, touch screen off and everything else on.

You can also set use “Custom” mode to select any variation of the above and what I really like about this system is that the watch will alert you towards the lower end of its battery life and will dynamically change settings to eek out the battery life (asking your permission to do this) to ensure you get to your finish line with the basic chrono functions still recording.

The watch took us 2hrs 50 minutes to recharge from 2%.

Heart Rate Monitor (HRM)

Optical HRM’s get a bad rap – early versions with other manufacturers simply weren’t reliable, they required specific positioning, specific pressure on the wrist and god forbid you sweated so your skin got wet …. Luckily those days seem to be a thing of the past, with the Suunto 9 anyway. The “9” optical HRM is pretty reliable and consistent, even under variable conditions.  Yes, you still have to adjust it to a pressure that allows continuous skin contact, but that is a reasonable ask for a wrist-based sensor.

I compared this with a chest strap unit and an Apple watch - the Suunto certainly kept up with the chest strap and out-performed the Apple watch when things got sweaty. Inevitably when using an optical sensor you will deplete your battery, but so will having a Bluetooth connected chest HR monitor – the convenience of having this unit on outweighs the negative if you are happy to play around with strap tension and positioning initially to get it to work best for you.


GPS Tracking

Tracking has come a long way on GPS based wearables. Chip performance has improved substantially and more importantly the software that makes sense of GPS is now useful and accurate. The Suunto 9 Baro armed with the Sony GPS chip, with a claimed +/- 1metre accuracy, ticks both those boxes. I tracked a 10km run through wooded, hilly terrain with both the watch and a handheld unit that I trust for its accuracy and the differences were minimal.

The jewel in the Suunto’s GPS crown is the “FusedSpeed” function which combines the accelerometer function together with the GPS output using an algorithm in the event of losing signal, for instance, in dense terrain. This is a really great feature for me as I am mainly on the trails in wooded areas and I am guessing this would also be useful for users in urban environments where buildings can make GPS functionality inaccurate.

The “FusedTrack” functionality delivers the same predictive tracking when the Endurance or Ultra GPS modes are engaged.


Using the “Routes” function you can load a pre-planned route onto the watch from the Suunto app that is easy to follow, allowing you to zoom down to a 100m screen representation of your track. If you go off track by 100m, the watch vibrates to alert you and then again when you are back on track. This is also combined with a “Find Back” function that allows you to retrace your steps.

Living with the watch

I have had the watch for a while now and it has really grown on me.  It still draws comments on its size and questions about what it is capable of. It works well as a training aid, heath monitor and racing navigation tool and all wrapped with some intelligent features.  It doesn’t have some of the features that you get on Garmin watches, however this to me defines its purest purpose as a fitness / navigation / training and health monitoring watch.

It may lack coloured maps, NFC connectivity and an MP3 player but this personally doesn’t worry me one bit as I have these on other devices so I don’t need to drain battery on my smartwatch. The training functions are also advanced, to get maximum benefit from this you will need to pair the “9” with a Powermeter/Powerpod that measures exertion and power you produce.

This allows you to train specifically for running or cycling.   You can customise pace zones and power zones, a nirvana for those who love a data driven approach to training. You can pretty much pair the watch with any Bluetooth compatible device.

Talking of cost, this isn’t an investment most will take lightly as the RRP is knocking on £540. I suspect it will attract ultrarunners and endurance athletes who won’t want to have to rely on accessing chargers and are happy to pay this price for the autonomy that long battery life affords.

The companion Suunto app (IOS/Android) replaces the old Movescount app. It has recently had a reworking that makes it fit for purpose and easy to use, although it did take a few attempts to pair it with a new phone. The watch also works nicely with Strava!



  • Battery Life
  • Great build quality
  • Easy of use
  • GPS predictive function
  • Ability to customise use according to taste and requirements
  • Good Heart Rate Monitor


  • Bulk
  • Screen brightness
  • Cost


Design 9
Features 9
Performance 10
Value 7
Overall 9


Others you may want to consider:

Garmin Fenix Sapphire 5X £499
Suunto Spartan Ultra  £369
Huawei Watch 2  £199

Have you tried the Suunto 9 Baro Smartwatch? Don’t agree with this review? What’s your opinion? Add your own comment to this review and share your experience and passion for running with others.

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All images by Steve Diederich

Review Suunto 9 Baro Smartwatch

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01:10 03-07-19

The review provided above, by Steve Diederich, is very accurate on what the Suunto 9 Baro is capable of. Maybe a bit of background, I always train 6 days a week (11 months of summer) doing either Wattbike, circuit training, squash or ultra running training. The Suunto 9 is my training partner for many of my ultra marathons and has since day 1 met my expectations i.e. providing accurate HR, route navigation (most important on misty trail races), measuring elevation gain, pace per km, average pace and so on. The other standout features are that I bumped it so many times expecting it to show scratches and wear but so far its still perfect. Nothing beats the battery life. The colour touch-screen is great too. It also has notifications to warn you that you need to re-charge it prior to your usual long run. Ive mapped the trail and other routes to allow the watch too guide me through misty forest areas. I've now clocked over 5000 running kms on this watch and still would not trade it for any other. Almost for got to mention that the watch strap is also very comfy and does not show older wear signs (like a belt does) when you adjust the watch at times to be tighter or more loose fit. I still play around with these depending on the activity. The only draw-back for me was definitely price (because of import duties) and maybe agree with Steve that screen brightness and also my view that font size could be improved.

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08:29 10-02-19

This is a very comprehensive article on what you think the watch will give you. Unfortunately I have used tree watch and is going to let you down like nothing ever did. I bought it because I trusted suunto ambit peak3 but lost it. So I bought this on release date 26 June. I'll cut to the things that were wrong with it. In a 70 mile race I put it on endurance more for battery and after 3 miles it suddenly jumped to 8 miles. Then I turned it back to normal battery mode. Every 15 miles it was adding 1 to 2 miles. So frustrating. I think it's because if the infused feature. Perhaps. One day on a 7 mile run to work it showed I went to Angola!! The touch screen wouldn't work sometimes and other times it was okay. You only have a few watch faces and can't download any others. The map feature is a bad bread crumb version. The buttons are on the wrist side so if you're cycling they keep getting pressed. The wrist monitor will add at least 30 heart beats eg if I'm running real slow and hr with strap should be 138, wrist will have 168. Battery on a daily basis isn't as good as ambitpeak3 or fenix5x. And when you finally want to get rid of it u realise it not going to get even half of your money back. Audio to add I sent a detailed email about my run and full data of everything that went wrong during the run.. and they just sent a generic email back with directions on how to stay still while GPS is acquired and how to update software etc. I gifted the 9 to a friend for his couch I to 5k (he lives it) and went for fenix5x plus. Worth every penny.