Why isn't it syncing Heart Rate? December 03, 2019 21:57 Updated Unfortunately, Fitbit only gives 3rd party apps access to resting heart rate, so we are unable to sync intraday heart rate Related articles My steps didn't sync to Apple Health Will my Apple Health data be overwritten? myFitnessSync - Fitbit to Apple Health - iOS Instructions What is One Click Sync? Does myFitnessSync sync all my historical data? How far back can it sync?