HRV Tracker for Watch for Android

11 things about HRV Tracker for Watch

1. Heart Rate Variability measurements recorded by your Apple Watch can give you insight on the stress level your body is under.

2. To make sure your Apple Watch is capable of recording HRV measurements, please open the Health app on your iPhone to see if any HRV measurements exists.

3. Heart rate variability measurements used by HRV Tracker are calculated by measuring the variation between individual heartbeats.

4. By using HRV Tracker to track short-term measurements and long-term trends, you can see how your workload during the day, workout sessions or sleeping etc affect your body's readiness, recovery and stress level.

5. Besides background measurements generated automatically by your Apple Watch you can use the Breathe app on your Apple Watch to generate new measurements.

6. Besides the automatically recorded HRV measurements you can use the Breathe app on your Apple Watch to record new HRV measurements.

7. HRV Tracker makes spotting changes in your HRV easy by monitoring your HRV measurements in the background and showing notifications after your HRV drops under or rises above your desired levels.

8. Data read from the Apple HealthKit database is only used to show information related to your Heart Rate Variability.

9. Information read by HRV Tracker is only stored and used locally on your iPhone and Apple Watch.

10. In the HRV Tracker Apple Watch app you can choose to use a custom activity score that emphasizes the intensity of daily activity.

11. HealthKit uses SDNN heart rate variability, which is calculated using the standard deviation of the inter-beat (RR) intervals between normal heartbeats (measured in milliseconds).