Suunto- Race S sleep tracking not working
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Sleep recoding with a Suunto have never been working perfect for me and used Suunto since 2013.
From 2019 with my Suunto 9 baro to today, A Suunto Vertical i barley get more than 4-5 hours/night.I use another watch for that when I need it.
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@Iggge I came to the conclusion that excessive quantification of physiological and performance metrics, as promoted by many brands, presents both advantages and drawbacks. While tracking training metrics such as Chronic Training Load (CTL), Acute Training Load (ATL), and Training Stress Balance (TSB) can be beneficial for optimizing performance, an overabundance of data may contribute to increased stress. This, in turn, may hinder the development of one’s ability to rely on subjective sensations and internal cues, which are essential for long-term athletic self-awareness and adaptation. (Now I understand why sleep tracking is disabled by default on Suunto watches).
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@iterumtenta said in Suunto- Race S sleep tracking not working:
@JonasLarsson I stopped tracking sleep and HRV. Now I just train with ZoneSense, and honestly, I’ve never felt better. Less anxiety, more in tune with my body.
I’m thinking about stop looking at those data for a while. One step at the time. (no pun intended).
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I think also part of the challenge with Suunto is that over the span of a few short years they’ve gone from FirstBeats, to their experimental approach in the Vertical, to a new licensed version from a third party.
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@iterumtenta I use use the data just as a hint on my current health. That’s why Suunto is good when it just offer basic functions.
But when it’s just offer basic functions I also want everything to work -
do you still have the problem of missing sleep recordings?
have you found out how to improve the problem?I bought the race s this week. everything worked for the first two nights. today, the third night, no sleep recording…
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Today my Race S did not track sleeping. It did track HR during night, but no sleeping and resources chart got stuck. I did soft reset. I will see what night brings. This was first issue since 2.39.20 update.
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I have a Race S for a couple of months and sometimes don’t track sleeping . If I have more than one nap during the day, watch don’t track sleeping at all tomorrow. Developers should pay attention to this bug.
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Usually sleep tracking works for me, but on Sunday I somehow managed to have a nap while sleeping or vice a versa…
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@Stavrogin I purchased a Suunto Race S a few weeks ago, and since the very beginning, it wasn’t tracking my sleep correctly. Some nights, it said I fell asleep at 3:00 a.m. or 3:30 a.m., when I usually go to bed between midnight an 1:00 a.m. Other nights, it recorded a one-hour nap or nothing at all.
After reading your post, I decided to try sleeping with the watch on my other arm (my right arm; I normally wear it on my left).
The thing is, I always start to sleep on my right side, so wearing the watch on my right arm to sleep means it ends up facing down.
I’ve only tried it three nights, where the watch recorded my sleep perfectly, saying I fell asleep 10-15 minutes after getting into bed (at different times each night, but always got it right within that small margin). On a fourth night, I put the watch on my other arm, the left, and it recorded my sleep incorrectly again.
I’ll keep trying things along these lines, for example putting the watch on my left arm and trying to fall asleep on the left side. I wonder if the position of the watch when getting into bed, face up or face down, or perhaps how much or how little each of us moves in bed in those first few minutes of falling asleep affects the watch’s ability to detect that we started to sleep.
After all, if I’m not mistaken, it’s the movements we make when we’re asleep that the watch uses to decide whether we are in a light, deep or REM sleep phase, right? And since almost all of us have a way of falling asleep in bed, that might explain why sleep tracking works perfectly for some and not for others.
Just a theory, I’ll try to post again in a few days sharing whatever I find relevant, I wouldn’t want to create a false theory that would cause more confusion than anything else.
P.S.: During this brief experiment, if you can call it that, I didn’t change either my resting heart rate or DND hours.
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here again it is not tracking sleep data.
it all started when battery was completely drained during the night. Since then it does not work decent anymore. -
@hombreu So I have been using the watch since the original post. Still not able to correctly track sleep even with all the updates if I wear the watch on my left wrist. I had access to a Suunto Vertical and it works on both wrists.
It makes me sad every time I see an update saying that sleep tracking is “fixed” and I wake up the next morning without the correct info.
I will add that recently I have also not been geting HRV over night and that was a new bug, but with the new update on 3/25/25 I got HRV last night. Hopefully it will continue.
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@Stavrogin Well… After two weeks and trying to test things as methodically as possible, my conclusions are the same: when I fall asleep with the watch face upside down, the sleep reading is accurate with respect to the time I fall asleep. Regarding the time I wake up, it’s more variable, although generally quite accurate, in my case.
Last night, with the watch updated to version 2.40.38, I tried wearing it on my usual arm, the one that doesn’t leave the watch face down when I fall asleep. Last night, I was especially tired. So much so that I was falling asleep on the couch. I went to bed at 11 PM and I’m pretty sure I fell asleep in 5 minutes. And I got up at 7:30 AM with the alarm.
However, in the morning, the log said I fell asleep at 2:46 AM and woke up at 6:48 AM. Sigh…
I totally agree with you. It’s frustrating to think that something that wasn’t working before is finally going to work, and it’s still the same… Personally, I’m more disappointed with the swimming measurement, but the feeling is the same.
Anyway, it’s only been one night with the new FW, so I’ll keep trying things out. Personally, I don’t care much about what the watch says; I’m not a good sleeper, and this “research” is serving me as motivation to be more aware of what time I go to bed and whether I’m already later than I should be.
