Check your heart rate on Apple Watch - Apple Support

Use Heart Rate on your Apple Watch to monitor your heart rate throughout the day.

Check and update your calendar on Apple Watch - Apple Support

Apple Watch heart rate history: how to check and track - 9to5Mac

Use Emergency SOS on your Apple Watch - Apple Support

How to Check Heart Rate on an Apple Watch

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How to use Heart Rate Zones on your Apple Watch

Check your heart rate on Apple Watch - Apple Support

Share and view health data in the Health app - Apple Support

Heart Rate Recovery Apple Watch: Tracking Your Post-Workout Progress - GadgetMates

Measure heart rate variability (HRV) and stress using Apple Watch

How Apple Watch Measures Heart Rate & Its Accuracy Explained

Run with your Apple Watch - Apple Support

Apple Watch Ultra User Guide - Apple Support