Check your heart rate on Apple Watch - Apple Support

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

The Apple Watch app - Apple Support

How to Read Heart Rate on Apple Watch (more ways)

How to turn on high and low heart rate notifications on  Watch

How to check your heart rate on an Apple Watch

How to Check Heart Rate on an Apple Watch

How to check your heart rate on Apple Watch - 9to5Mac

Apple Watch User Guide - Apple Support

How These Heart-Rate Watches Can Help You Monitor Your Health

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

Record an electrocardiogram with the ECG app on Apple Watch - Apple Support

How To: Easily Find Your Target Heart Rate for Exercise

Monitor your heart rate with Apple Watch - Apple Support

Heart Rate Monitor for Training - IDEA Health & Fitness Association

What Is a Healthy Resting Heart Rate?

What Does My Heart Rate Mean?