Designed for your wrist

Heart rate guidance on your wrist.

Start a workout, see your current zone at a glance, and use optional haptics to stay informed without breaking stride.

Download on the App Store

A real Apple Watch companion

The Apple Watch app is built specifically for heart rate zone training. Its live workout screens show elapsed time, heart rate, current zone, time and percentage in zone, your target range, and totals across all five zones.

Train without watching the screen

Optional haptic feedback and alerts tell you when your zone changes or when you move outside a target. Audio alerts are also available for zone changes.

Use the screen that fits the moment

  • Run the workout directly on Apple Watch
  • Mirror Apple Watch heart rate to the larger iPhone display
  • Follow a workout through Dynamic Island or Lock Screen Live Activities
  • Connect common Bluetooth heart rate monitors, including compatible Polar and Garmin devices

Compatibility noted on the current listing: iPhone requires iOS 17 or later; Apple Watch requires watchOS 10 or later.