I own a Watch Active.
Heart rate measuring is set to "manual".
Stress measuring is set to "manual".
I can't understand why, from time to time, the heart sensor is on and measuring (aka green light blinking on the back).
I'm sure it happens when I don't wear the watch. I can't tell whether it happens when the watch is on my wrist, since I wouldn't notice the green led.
Can you please help me understand what is the cause?
It all could be started after the latest fw update, I did'nt notice this behavior before.
Thank you in advance!