If you haven't been resting or sleeping for the past 10 minutes and your heart rate stays below the limit over 10 minutes, the device will vibrate once and display a message letting you know that your heart rate is too low. You can swipe right on the screen or press the side button to clear the message.

Perform the following to enable Low heart rate alert:

1. Open the Health app, touch Devices then your device name, go to Health monitoring > Continuous heart rate monitoring, and enable Continuous heart rate monitoring.
2. Touch Low heart rate alert and set a limit.

 

• You can set the low heart rate value to the following: 40 bpm, 45 bpm, or 50 bpm.