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The heart rate (HRM-PRO ) is not displayed correctly. Sometimes it is clearly too low and without change over a longer period of time. What could be the reason?

batterie changed

can compare this with the heart rate on the fenix. the values from the HRM are not correct

0 YK56NJ4 6 months ago

Maybe this is a contact problem. Try to wet your chest with water under the hr sensor. This does the trick usually for me.