Check your heart rate on Apple Watch - Apple Support

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

Take an ECG with the ECG app on Apple Watch - Apple Support

How to see your heart rate or pulse on Apple Watch face

Calibrate your Apple Watch for improved Workout and Activity accuracy - Apple Support

How to Monitor Your Heart Rate on Apple Watch

How Apple Watch Measures Heart Rate & Its Accuracy Explained

Apple Watch SE (2nd generation) - Technical Specifications - Apple Support

WHY APPLE WATCH SE — All the essentials to help you be motivated and active, keep connected, track your health, and stay safe. The Smart Stack and

Apple Watch SE (2nd Gen) [GPS + Cellular 40mm] Smartwatch with Starlight Aluminum Case with Starlight Sport Band S/M. Fitness & Sleep Tracker, Crash

Heart health notifications on your Apple Watch - Apple Support

Measure blood oxygen levels on Apple Watch - Apple Support

How to Monitor Your Heart Rate With an Apple Watch

Measure blood oxygen levels on Apple Watch Ultra - Apple Support

Heart Health - Apple Support

The Apple Watch app - Apple Support