Is a native WatchOS app required to access watch heart rate sensor in real time?

We have a native iOS mobile fitness app. We would like to start a HKWorkoutSession on the Watch in order to get real-time access to the heart rate sensor. Our iOS app currently has HealthKit intergration and we have ask for permission to access heart rate.


It seems there is conflicting answers out there on wether a native WatchOS app is required or not to get real-time access to the heart rate sensor? Can we just start a workout session on the watch and query to get realtime heart rate data?

Apparently all you need to do is start a workout session in your HK app:


https://stackoverflow.com/questions/30776331/watch-os-2-0-beta-access-heart-beat-rate/35528009


https://developer.apple.com/documentation/healthkit/hkworkoutsession


Or is this not working for you with current tools?

Is a native WatchOS app required to access watch heart rate sensor in real time?
 
 
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