How to get beat-to-beat measurements's BPM

App & System Services Health & Fitness
veluloganathan OP
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Using HKHeartbeatSeriesQuery, I am able to get beat-to-beat timestamps. How to get the BPM for those timestamps?


I am able to see the BPM in apple health app.

Answered by Frameworks Engineer in 613139022
The timestamps represent individual beats, so there isn't really a particular BPM associated with them. If you want the implied BPM by the delta from the previous beat, then you can simply use that timestamp difference to do the calculation yourself. More likely, you'd want to average over some duration or some number of beats to compute a value that changes more smoothly.
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Frameworks Engineer OP
Apple
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The timestamps represent individual beats, so there isn't really a particular BPM associated with them. If you want the implied BPM by the delta from the previous beat, then you can simply use that timestamp difference to do the calculation yourself. More likely, you'd want to average over some duration or some number of beats to compute a value that changes more smoothly.