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965 HR sensor fails when swimming

Hi,

I set my 965 to my wrist as usual. I identified that I have to tighten the band a bit for HR sensor to be more correct in the water. However I feel that armband is correctly tight to the skin.

During swimming often it goes down to 60-80 pulses per minute, sometimes it takes 10-15 minutes to go up and identify reasonable pulses (140-150).

Thanks for support 

  • HR during swimming in the past was often turned off on watches because the value wasn't accurate.  New watches try to do it... BUT... as you can see it definitely has limitations in accuracy and responsiveness!