[Chris B]

Chris B on December 12, 2017 at 2:50 pm · in reply to: Heart Rate and Breaking Trail #7134

Specifically there’s a great deal of variation in reported HR from a wrist-based optical HR sensor when the temperature changes. I notice this all the time when I’m biking around town and tracking my HR using my F?nix 3 HR’s built-in sensor (not training, so I’m okay with the inaccuracy).