@GiPFELKiND not sure who or why give you dislike, but maybe people with this bug are just anoyed when someone blames it to be user error. When this is obviouse bug/issue in firmware or hardware.

True, reboot solves the issue. Keep in mind if you stop an activity for lunch break!

@cdfreet After a few weeks of testing, the issue started to occur again. The OHR sensor turns off without warning and does not turn back on until the watch is removed from the wrist or a forced restart is performed. [image: 1766697067740-img_5821.jpeg]

@Dimitrios-Kanellopoulos said in Q4 2025 Firmware Update Infos?: moved to START OF THE NEW YEAR Any publicable list of fixed issues/bugs ?

Está claro que esto es un fallo recurrente. A mí Sunnto Run con el que llevo algo más de una semana le pasa lo mismo. De 9 días he recibido el informe matinal 3 veces

@Brad_Olwin @SuperFlo75 Thanks, I’ll wait for the update and hope it solves the issue

@Sergio-Nasi Bonjour, je rencontre le même problème, les capteurs de mesure de fréquence cardiaque s’arrêtent. Obligé de redémarrer la montre. Y’a t-il une solution à ce problème ?

@Adam-Ward this method worked for me as well. Thankyou would’ve been a frustrating Christmas otherwise!

Même problème : une fois sur deux la Suunto Race 2 ne s’appaire pas à la Polar H10 et quand elle le fait si je fais 2 séances distinctes, la Race ne veut plus s’appairer à la H10 la seconde fois. C’est un peu énervant. 1ère fois que je rencontre ce problème avec une montre et j’en ai eu pas mal (Apple, Polar, Coros, Garmin). C’est étrange. Par contre toutes mes ceintures Garmin s’appairent tout de suite ou presque à la Race 2.

@Horizontal_2, I agree. Normally, recorded GPS track should be completely independent from the followed route. Did you use “snap to route” option by any chance? Also, what battery mode did you use?

@GiPFELKiND İşte Suunto’dan gelen yeni geri bildirim mesajı Dear Customer, Thank you for contacting us regarding the manual blood oxygen saturation (SpO₂) function on your Suunto watch and for providing your firmware version information (2.48.16). We have confirmed the issue you described with our engineering team and would like to provide the following explanation: First, we need to clarify the statement you heard online about the “feature being removed.” Your Suunto watch has always supported two blood oxygen monitoring modes: one is automatic monitoring during sleep, primarily used to analyze blood oxygen levels during sleep stages; the other is the instant measurement you mentioned, triggered manually via the widget. Previously, some users encountered errors or malfunctions with manual blood oxygen measurement in certain firmware versions, mainly due to software-related issues. Our engineering team has now fixed this issue in the background. By performing a factory reset, you cleared any temporary data and configurations on your watch that might have caused the function to malfunction, thus allowing the correct function logic to work properly. We hope this information clearly answers your questions. We are committed to continuously optimizing product functions and user experience through firmware updates. If you encounter any further issues, please feel free to contact us for assistance. Wishing you a pleasant day! Best regards,

What’s happening to me is that in the Suunto app the intervals appear correctly, but when I sync with RunMotion they are not recognized. Does anyone know about this issue and what the solution might be?

I have this issue you described with my SV1… it appeared after the last firmware update. I used two belts, one was really new, both belts the same crazy behavior. In my opinion, it’s the watch firmware.

I’m also having this problem. Basically, nothing from Suunto plus is syncing. Guides, watch faces, apps, etc., are not syncing for me. It’s super annoying when you’re about to sync some workouts before heading out and basic functionality is missing.

@soisan well, since it’s not a use case for me I didn’t see much sense in trying, but if it’s working, you might help @Olaf-Gottschalk in creating a better Hyrox experience with his Suunto with your experience in creating multisports sportsmodes with multiple running sessions in it He seems quite unhappy with his Suuntos, telling from most of his posts.

Hello, I was experiencing the same issue with abnormally high elevation gain after every outing, whether running, trail running, or cycling. This was true regardless of the wind conditions: light, strong, or nonexistent. I tried all the advice on the forum, then realized that the atmospheric pressure reading wasn’t stable when I stayed in one place (home, work, etc.). I then contacted someone on the Suunto chat who advised me to return the watch to have the atmospheric pressure sensor checked. The process took two weeks (sending, repairing, and returning the watch), and indeed, the sensor was faulty. After the watch was returned, the pressure reading was completely stable when I was stationary and the weather was stable. The elevation gain returned to normal, with no significant difference compared to Strava or any other comparative measurement. Problem solved. On reflection, the elevation measurement is carried out in FusedAlti mode, therefore via GPS and pressure sensor between GPS points, but if the sensor is unstable, this explains the “waves” on the elevation curve and therefore the overestimation of ascents and descents. No relation with à firmware update.