After a few months the OHR suddenly stopped working for many hours a day.
Switching the OHR off and on did not help, just as rebooting didn't.
I think its a software issue because it looks to me that when my heartrate is higher, above 80 or 90, it starts working....but only for a few hours.
So basically: no OHR, no sleep recording, no stress recording :-(
I'm using 3.30 firmware, updated tonight, but did not solve the problem.
Anyone else experiencing this?