Hold the touchscreen to view the menu, and select > .

HR Mode

Turns the wrist heart rate monitor on or off. You can use the Activity Only option to use the wrist heart rate monitor only during timed activities.

Abnormal HR Alert

Set the watch to alert you when your heart rate exceeds or drops below a target value (Setting an Abnormal Heart Rate Alert).

Relax Reminder

Set the watch to alert you when your stress level is unusually high. The alert encourages you to take a moment to relax, and the watch prompts you to begin a guided breathing exercise (Starting a Relaxation Timer).

Sleep Pulse Ox

Set your watch to continuously measure your blood oxygen saturation while you sleep.