A category sample type for irregular heart rhythm events.
- iOS 12.2+
- Mac Catalyst 13.0+
- watchOS 5.2+
The system creates
HKCategory samples whenever Apple Watch produces an irregular rhythm notification. For more information, see Heart rate notifications on your Apple Watch.
The irregular rhythm samples are read-only. Use this identifier to request permission to read these samples; however, you can’t request authorization to share them, and you can’t save new irregular rhythm events to the HealthKit store.
These samples have a value of