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Forerunner 745 - Polar H10 heart rate swimming.

I am pairing FR745 with Polar H10 sensor before open water swimming, but not sure HR data registered for the workout is taken from external H10 sensor or from wrist.

With Garmin sensors I have to download data after workout, but can't dowbload from H10. How do I make sure HR data is taken from wrist or H10?

0 tmk2 over 3 years ago

I have bad news for you. First, the HR data is registered from the built-in optical sensor, and not the H10. And second, you cannot download HR data from the H10 post-workout.

0 1570831 over 3 years ago in reply to tmk2

What if I switch off the built-in HR sensor for swimming? The activity could record H10 data?

0 tmk2 over 3 years ago in reply to 1570831

No. Radio waves from the H10 sensor do not travel through water.