Instinct and hrm dual. Which hr is being displayed?

Hello, i have an instinct tactical (i dont know if that makes a difference) and some one gave me an hrm dual. My problem is that instinct has a hr sensor so before i paired it with the hrm dual i closed it. I didnt see any heart rate so i turned it back on. But now i dont know if the heart rate is from the watch or the hrm. And the hrm cant connect to the garming app. Anyone knows how to see the ht from hrm? Thank you!

  • Unless you are doing a workout it will use the sensor in the watch. During a workout it will use the HRM sensor... I don't know whether the Instinct does it, but some Garmin watches write both sensors data in the FIT file that result from a workout. Your can use tools like fit file viewer to compare the data...