Fenix 6x stopped tracking sleep.

3 days ago my watch stopped tracking sleep. I have had issues where connect didn't register sleep and I have entered approximate sleep manually and the app caught up and updated later but now the watch is not registering sleep at all. I entered approximate times manually and the app will show light and deep sleep during that time but no REM. The watch itself is not registering any sleep. I did a soft reset today, hopefully that will fix it. Anyone else have this issue?

  • I have the same issue intermittently. Sleep is the first thing I check in the morning, and I will see an error message that the device didn't track it - no explanation. I go into user settings, toggle the sleep/awake times, exit the settings and sync, and the  sleep will show.   I recently got the chest strap and paired it (sleep should be tracked from the wrist anyway) and also my Samsung phone updated itself adjusting the sleep / DnD times. With all these changes it's impossible to know what affected the watch stopping to record sleep from the wrist. The last few nights the watch has resumed tracking sleep without issue. 

  • Yes. I'm having the same issue. No sleep recorded. No body battery or pulse ox. I've tried everything I can think of. Has there been a software update I've missed???

  • I did a soft reset and it mostly fixed it although it has shown several nights with no REM. I am on software 24.77 I think that is still an alpha.

  • I faced similar issue after charging my watch. I used alpha version 24.79. In fact the heart rate monitoring was stopped, green led were not blinking. To recover I power cycle the watch. It looks like heart rate monitoring did not restart when I disconnected the watch from the AC adapter.