@Patrick-Rx What works for me with sticky buttons (for crown should work as well) is luke warm water with some liquid soap, I put it in the glass and leave the watch 2-3 hours inside. You can gently stir it.

@Seybothula any bluetooth HR belt can be used with these watches. One thing to watch our for is whether the particular device transmits R-R interval data (like the Suunto Smart Sensor or Polar H10 do) or just HR snapshots. R-R data is required for ZoneSense to work. The only feature Suunto watches only support with Suunto Smart Sensor is the capability to use the sensor’s memory to store the HR data while the watch is out of BT range (like during swimming).

Hi, no, you don’t have to pair it with the watch, and then unpair it after a workout. Just pair it once. Then just put the chest strap on, wait before you start your activity until you see a green belt icon above the START button, this means the chest strap is connected to the watch. That’s all.

@Brad_Olwin thanks Brad. I was hoping to get away from that. Had to do it several times in the last few months. Ugh. Better take screen shots of all my setting etc.

@Vanillaface Check Settings/General/About on the watch and scroll down until you see Assisted GPS. This should have the current date. If not the file for finding satellites is not loaded. A second issue is that this file requires a few minutes to unpack. If it syncs to the watch immediately before an exercise it will take much longer to get a GPS lock. Your lock (solid green arrow) should take only a few seconds if you have a good view of the sky.

@Brad_Olwin At least for me also the treadmill correction factor was gone after one of the last updates. Not sure about the latest one as the temperature allows outdoor running

@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.

@2b2bff Yes, I noticed this today as well, it works as expected now.

and an update: the issue was the watch itself. Got a new one, which works flawlessly. It was not a settings or software issue probably, but hardware

Chase the summit made an interesting comparison on VO2 Max between a lab test and different watch brands. In this video he uses the Race S. I kinda like the results https://youtu.be/i3O1cpQqFhw?si=sgYLZAmd1N595lDx

@jakexuan Thank you for your insight! It certainly is frustrating and does seem like it can be an easy fix… I do rely on the automatic interval count/timing and don’t mind the slight inaccuracy for the easy stuff, but when I am doing any type of speed work, I do need to have full control on the start and finish to have a fully accurate split times As silly as it sounds, I think my only option for when doing main sets would be to switch to a running profile and use the lap duration counter on there

@Luis-de-Paz Training metrics including TSS, TSB, CTL will sync but the individual workouts will not sync back to the watch. So, what you want is not possible.

@BRogers80 I proposed something similar some time ago here https://forum.suunto.com/post/153074