Enough
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it’s just not nice coming from a watch where you had the feeling the sensor was working to a new watch where you have the feeling it is not working.
it kinda feels like wasting money and leave you disappointed.
if the watch then also restarts from time to time…though it’s already been a few weeks without a restart…
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@Jaakers Well indeed, garmin and coros use the latest HR sensors. Unsure for apple and samsung.
If suunto uses an old unreliable HR sensor, one cannot ask such money for the watches.
Garmin just performs quite well for OHR even on cheap watches.
Some people don’t care about OHR, but we are in 2025 and integrating a lot of sensors in a watch, so we don’t have to use other tools.
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@isazi Last year it was March 25th (same as this year), then April 23rd, and finally May 21st. I would have expected at least a bug fix, if only for the Wi-Fi issue, which is quite annoying
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@Jaakers Well indeed, garmin and coros use the latest HR sensors. Unsure for apple and samsung.
If suunto uses an old unreliable HR sensor, one cannot ask such money for the watches.
Garmin just performs quite well for OHR even on cheap watches.
Some people don’t care about OHR, but we are in 2025 and integrating a lot of sensors in a watch, so we don’t have to use other tools.
As I said before this is not true. Coros has an OHR arm band that recommends to use to have good readings doing sports, you can check their athletes in Instagram, they do not use the watch OHR. Garmin has just presented a new chest strap. So, you have other tools and the brands are telling you, without telling you, that do not trust your OHR.
Is you are a little bit serious in any sports you won’t rely in the watch OHR, in my opinion is only useful for daily tracking, very easy walks and night sleep.
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@cosme.costa said in Enough:
@Jaakers Well indeed, garmin and coros use the latest HR sensors.
If you practice any sport other than just recreational around your home, you use a chest band. No watch: Garmin, Coros, Suunto, Polar are not suitable for precise heart rate measurement and setting zones with the help of, for example, a watch.
When you go for a professional zones test, no one measures your heart rate from your watch, but from chest band
The Polar H10 seems to be the best and most accurate one available at the moment.
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@Adrian.S In fact, now a days, you can get your zones using ZoneSense with the chest strap. In my opinion ZoneSense is “the feature” and a killer for the other brands, only for this the watch is worth the money.
I have the chest strap form Suunto, the Polar H10 and the Coros arm band, in my opinion the most comfortable is the coros armband but of course is not as reliable/quick reacting as the chest strap and not compatible with ZoneSense. Between the Polar H10 and the Suunto smart band I do not see any difference in accuracy and the Suunto is samller and more comfortable than the Polar, besides the Polar is more hard with the battery. In the other hand the Polar can have 2 simultaneous BT connections and one ANT+ whilst the Sunnto only one connection.
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5 more answers and hrv is not reliable anymore…
i think most of us are not serious athletes…
but i had the feeling that running in the correct zones was doable with my previous watch and it probably (99% sure) was.
if not, then how many people are pretending to be doing ok when actually there are not? -
@cosme.costa said in Enough:
@Jaakers Well indeed, garmin and coros use the latest HR sensors.
If you practice any sport other than just recreational around your home, you use a chest band. No watch: Garmin, Coros, Suunto, Polar are not suitable for precise heart rate measurement and setting zones with the help of, for example, a watch.
When you go for a professional zones test, no one measures your heart rate from your watch, but from chest band
The Polar H10 seems to be the best and most accurate one available at the moment.
Still not following this.
Garmin does a better OHR than suunto, it’s a simple as that. All brands provide a chest strap, it’s a different type of sensor, more accurate indeed.
But for many people that do some cycling/running/whatever and want a good indiciation of their heart rate, OHR is sufficient, and garmin does it better for less money.
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For whatever reason, I’m one of those who get wrong OHR readings from the Race. For example, it will regularly measure upwards of 90 BPM sitting still, when by manual method I can measure lower than 60 BPM.
With the right expectation, I can accept the error and use a chest monitor during exercise. The watch is so great, I told myself I would do just that and live with the OHR problems. But my biggest issue came with sleep monitoring and confirming cool down.
What is the point of accepting what is wrong generally 85% of the time when the data is used in calculated feedback? It’s an honest question, in the hope someone could give me some insight I didn’t consider… seriously, I’m hoping for a reason to keep using this thing!
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Long time Suunto user here, you guys clearly didn’t use a Suunto 9/9 Baro, THAT was a watch with unreliable OHR.
Agreed with @cosme.costa, since S9P, Suunto’s OHR offering has been getting better and better, now SRS is the best OHR from Suunto (Suunto Run due in a few might take that crown due to less heavy materials
).Anyways, my advise for those seeing bad OHR on Suunto watches while exercising, just try a couple of things:
A) wear it on your less dominant hand (it does make a difference, at least it does on me)
B) wear it at least once finger width above wrist bone like shown below :
Read more tips from Suunto on how to get better OHR readings here.
https://us.suunto.com/pages/how-to-get-more-accurate-wrist-heart-rate-readingsEither way, if you own a Suunto, ZoneSense is such a hook, should have you interested in wearing HR chest strap most of the time
Hope that helps.
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A long time suunto user as well. A few points:
- The oHR is decent should you keep your wrist a bit steady. If the way is to wear thw watch a bit higher or to have a different strap, or by how you clench your fist… it’s up to you. I measured this multiple times and is like spot on. Otherwise it does fluctuate, but does it really matter? If it does, wear a chest strap , if it doesn’t , it doesn’t really matter .
- I cannot understand why would anyone care about sleep tracking through a consumer product… You do know that your body was created to give you those indicators right? One may argue that it is advertised it does make a difference… You are right, most sports’ watches do … but it’s time to get back to reality and understand, it’s almost as accurate as coffee fortune telling …
- do you like the watch? use it, you don’t like it and you can afford to replace, do so.
- Do you train for the number of metrics shown or for the training/fun/exercise/experience ? if it’s the latter, use your watches for what it was made for… if its the former… then there are better options that have hundreds of metrics with quite broad usage (not questionable value)
There are people who train as if they are in a hamster wheel , others who do it for fun, others who are professionals etc… I don’t train/exercise to make a living neither do I do it because someone (or a watch) tells me so . I do it because i Like it hence i quite enjoy my vertical
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I’ve been using or testing other brands than Suunto : Garmin, coros, polar
None of any model of any brand works fine on me while exercising.
I’m using HR strap if I want accuracy.
Some of my close friend have excellent accuracy with Suuntos, other with Garmins. Not me.
Its not a disappointment : it’s works fine for daily and sleep tracking, and I use hr strap because I want accuracy anyway while exercising and also zonesens. -
What is the point of accepting what is wrong generally 85% of the time when the data is used in calculated feedback? It’s an honest question, in the hope someone could give me some insight I didn’t consider… seriously, I’m hoping for a reason to keep using this thing!
maybe your sensor is defective, owning a Race for more than one year I can say that my HR readings are mostly correct when not doing sport activities. When at sleep also oxygen saturation looks good (while it’s always wrong when awake)
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@Adrian.S Just out of curiosity, do you think many Pros and Semi Pros use sleep tracking? From your post it sounds like it is important because without it you will not get some of the readings you were talking about. Suunto’s sleep tracking is a proper dumpster fire for many, me included. Garmin, Coros, Oura, Whoop, they all get 99% of my nights correct, but Suunto? A total guess every night what will happen.
Just curious if a lot of pro athletes use it.
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@cdfreet I too have issues with the sleep tracking. I think this is a common problem for many many Suunto users. It is frustrating. If they could get it to work, I would be in a dedicated marriage with Suunto, but it is such a dysfunctional relationship because of the on and off sleep tracking for zero reason what so ever. I have studied all the “tweets” that are supposed to make it work to no avail. It is a software problem, not a person problem.
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@Stavrogin Not on a one-off basis, but over a long period of time such data can be useful because it includes data on changed HRV in the time and overall recovery—I use it in the last 4 weeks before a race, for example, for 70-100 km, where the most strenuous training takes place, which is already at the limit with a risk of injury, and I like to know if my HRV is at the limit, overtrained, or normal, because you can surprise yourself with one too intense training session - it’s better to recover than to cross the line.
I also like to see how my statistics during the periodization phase are maxed out
That’s why I consider 24/h heart rate measurement as recovery time + nights, where the recovery is the most important (from the wrist) for me.OK - people used to run without watches and somehow they did
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@cosme.costa my first fillings about zonesense:
https://forum.suunto.com/topic/12991/zonesense-reflections -
As a remember, saying « it doesn’t work for many, based on the few people sharing bad experience, is not a clue.
Sleep tracking works perfectly fine on me, also on my wife, my friends using Suunto’s too…with SV, SRs, SR, S9pp. It’s very rare that it fails. Are my settings involved in accuracy ? I don’t know,maybe (usual sleep tracking set from 23h to 7h, auto DND also from 23h to 7h, no sp02 tracking, HRV tracking on, no notifications).
So, don’t forget that if does not work on you, even confirmed by some other users here, doesn’t mean it’s a general issue. -
@Tieutieu it works for me as well: HRV and SPO2 tracking enabled, DND enabled and disabled manually, notifications enabled generally.
One night it didn’t track in the last months. Sometimes I get an odd nap added.The tracked sleep data isn’t better or worse than my Garmin has been. About the same…
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@2b2bff sleep tracking started working when I turned the watch to the inside of the wrist for the night. The results have been believable for weeks now. Still the results are nothing but curiosity for me. I mainly wear the watch nightly because of the wake up alarm, which is more subtle than my phone’s smog horn.
