Yesterday went for exercise(walking) and HR reading was crazy
Also max speed was little higher for a walk :)))))
Anyone had similar experience?
@djordje-s pretty well known for S9, it is a somewhat bulky watch that bounces around a lot. I have decent (and sometimes good) results only using the velcro strap.
S9 or S9P ?
I had similar wrong values up to 220.
The solution was to pull the strap around 1-2 holes tighter, because it had lost its flexibility over the time.
On cold conditions it has to fix very tight for good results - in my case.
@reiner Doing that every time and 2 fingers from wrist