Turning On Pulse Oximeter Sleep Tracking

Before you can use pulse oximeter sleep tracking, you must set your Lily 2 Active watch as your primary wearable in your Garmin Connect account (Unified Training Status).

You can set your watch to continuously measure your blood oxygen level, or SpO2, for up to 4 hours during your defined sleep window (Tips for Erratic Pulse Oximeter Data).

NOTE: Unusual sleep positions can cause abnormally low sleep-time SpO2 readings.

1. Hold to view the menu.
2. Select Settings > Watch Sensors > Sleep Pulse Ox.
3. Select the toggle switch to turn on tracking.