update: no more step tracking, sleep and inconsistent heart rate

I'm also having the same issue, could you please look into this. Thank you. 

I’m seeing similar issues. Forerunner 165 on v27.09 and I’ve gone through all the usual steps: Garmin Express update/sync, restarts, and full factory resets.

Heart rate data is still all over the place in day-to-day use and during activities, and the watch consistently lags for 7–8 seconds when pausing or resuming an activity. My last four runs, including all-out efforts, have shown an average heart rate of 74–76 bpm, which is clearly not accurate.

I’m also seeing problems with cadence, and my sleeping heart rate looks wrong as well, with random spikes in the middle of the night.

Find the product page for your watch and use the chat option to contact support, or email.

Hi, same issue here. Firmware update 27.09 has broken everything and battery life went to 2 days (was about 9 days before). I've reported the problem via email. Hopefully, someone will react soon.

I've had exact same issue since the weekend.

I've had exact same issues since weekend.  I

Yeah same here since the update.  Hr staying at 70ish during runs,  real time pace all over the place.  Lag when pausing and starting the activity.

I am seeing similar issues with step tracking stopped. Heart rate seems off or not responsive. Sleep tracking stopped.  I tried a full reset and still had the same results.