Suunto 2.50.26 – Q4 2025 Release Notes
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@cosme.costa Holy weirdness, I was just able to reproduce this behavior on both my SV1 and 9PP. I just tried switching back and forth between different activity start screens and, randomly, the raise-to-wake backlight would activate. It didn’t seem to depend on which activity (sometimes walk, sometimes run, etc.) and it didn’t activate every time. But when it did, it remained active even after starting the activity.
However, I also noticed that once I returned to the main watch face, the backlight remained ON as if I had activated in the settings (which it wasn’t). Even after interacting with the watch and then letting the watch face time out (after 1 minute), the backlight remained on. The only way to turn the backlight off was to go into settings, toggle it on, and then back off again.
@Dimitrios-Kanellopoulos This seems like a pretty big bug that will cause significant battery drain if users do not notice that the backlight has been inadvertently turned on.
To reproduce on SV1 and 9PP:
- Turn off all backlight settings (Standby: Off, Raise to wake: off).
- Select a random activity to bring up the start screen.
- Wait for backlight to timeout (~8 sec. after no interaction).
- Test raise-to-wake with wrist flick.
- If it does not activate, try a different activity until it does (it will eventually)
- Return to watch face
- Backlight will now remain ON in standby mode
I’ve been able to reproduce this every time I’ve tried.
Vertical Ti / S9PP Ti / S9P Ti
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Race2, “Raise to wake” strange behaviours during activities:
I’m using Race2 with Rase to wake ON, same configuration than Race S. Many times during activity the screen remains ON even when my arm is down, for minutes at a time. Maybe half duration of the activity the screen it’s been on, so battery drain is higher than usual. For comparison, Race S, same time in right hand, goes off immediately after arm is down.
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@jjpaz I’d guess it’s all related. Something about starting an activity is altering the backlight settings for sure.
Are you able to reproduce it on your Race S through the steps I listed above? Try starting a few random activities (or just going to the start screens) and see if anything changes. It doesn’t happen every time for me, maybe about half the time.
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Not a big deal but on my SV the personnal battery modes setting in exercice option have been reseted to « performances » instead of personnal (I had touchscreen enabled during exercice set on) for at least my personnal cycling mode. I’ll check on other personnal sport modes.
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@cosme.costa if you like the bug, don’t report it LOL
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9PP owner here…
This thing frustrates me so much. I would just like the watch to function as it did when I purchased it. I have auto updates turned off, but once again the s/w was updated without my consent.
Whilst I understand that ‘expert’ users might appreciate new content, I’ve seen nothing but degradation from every update.
This time I’m getting random vibration alerts (with notifications off), and whilst I was happy with the c1week battery life (I know many others aren’t…), it has now gone flat from full charge in 3 days.
Step counter worked OK when I bought it, but has been broken since an early update. Likewise HRM drops out more frequently than I think it used to.Much of my activity is hill walking, often with a friend who has an ancient Polar Grit which seems much better and more consistent. Maybe time to jump ship.
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@duffman19, please check https://forum.suunto.com/post/182890: I’ve already highlighted this bug almost a week ago, but there was (is?) no reaction.
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@duffman19 Yeah I’m able to reproduce it too but in my SVTS when I return to the main screen the backlight is off it is not turned on after the activity.
I hope Suunto devs polish this bug making it a funcion: raise to wake only in activity as it was already in the S9B or S5P.
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@Matúš Sorry I didn’t see your discussion above. Indeed this seems to be the same bug. I’m quite certain the trigger is starting an activity. Are you able to reproduce it?
@Dimitrios-Kanellopoulos @pavel.samokha Any news whether Suunto is aware of this?
I saw a few complaints of rapid battery drain on other forums, up to 70% over 24 hours, mainly 9PP users. I’d be willing to bet this is due to an inadvertently activated backlight.
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Another wird behaviour since update, observed with both my SV and SRs : in watch mode, I notice while driving my car in moutains/hill terrain, with quick elevation changes, the altimeter is not immediatly responding and altitude is often “stuck” to the value of start of the climb for instance (first I thought that it may have been related to watchface, but I use different ones on each watch, and while going in to the barometer wigdet, the behaviour was the same). It takes few second/minutes so altitude starts updating and it is obviously less reactive than before.
Have you noticed the same ? -
@Tieutieu said in Suunto 2.50.26 – Q4 2025 Release Notes:
Another wird behaviour since update, observed with both my SV and SRs : in watch mode, I notice while driving my car in moutains/hill terrain, with quick elevation changes, the altimeter is not immediatly responding and altitude is often “stuck” to the value of start of the climb for instance (first I thought that it may have been related to watchface, but I use different ones on each watch, and while going in to the barometer wigdet, the behaviour was the same). It takes few second/minutes so altitude starts updating and it is obviously less reactive than before.
Have you noticed the same ?Yes, I have noticed this. It is also happening in a plane that is climbing from takeoff to cruising altitude. It is an effect during daily mode, not in activity recording.
It is known to Suunto and checked again.During activity, the altitude change filter is adaptive: für alpine skiing with quick elevation changes, the altitude is updated instantly. During hiking there is a filter in place that only allows slower altitude changes.
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@duffman19, I confirm you that the trigger is the activity starting, actually, the activity starting screen (where are listed the activity settings). Triggered the bug by scrolling the settings, the raise to wake starts to “work”; later, by leaving that page, the back light stays on no matter what until a setting related to the screen in manually triggered.
I reproduced the bug two days straight: the triggering behaviour and the consequences were always the same.
