@giuliosq, hi, considering that you wrote:
@giuliosq said in Wrong HR during skitouring:
the watch was obviously well positioned.
I’m assuming that you’re relying on the optical HR measurement. It’s a common issue that with cold weather (less blood flow) and using poles (sort of sensor cadence locking) the OHR measurement fails, even if the watch is well positioned over the wrist. If you care about HR data, go with HR belt.