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Heart Rate Features
The Lily device enables you to view wrist-based heart rate data.
Monitors the saturation of oxygen in your blood. Knowing your oxygen saturation can help you
determine how your body is adapting to exercise and stress.
NOTE: The pulse oximeter sensor is located on the back of the device.
Displays your current VO2 max., which is an indication of athletic performance and should increase as
your level of fitness improves.
Alerts you when your heart rate exceeds or drops below a certain number of beats per minute after a
period of inactivity.
Wrist Heart Rate Monitor Settings
Press to view the menu, and select > .
Status: Allows you to turn the wrist heart rate monitor on or off.
HR Alerts: Allows you to set the device to alert you when your heart rate exceeds or drops below a set
threshold after a period of inactivity (Setting an Abnormal Heart Rate Alert, page 14).
Sleep Pulse Ox: Allows you to set your device to record pulse oximeter readings while you are inactive during
the day or continuously while you sleep. (Turning On Pulse Oximeter Sleep Tracking, page 14)
Pulse Oximeter
The Lily device has a wrist-based pulse oximeter to gauge the saturation of oxygen in your blood. Knowing your
oxygen saturation can help you determine how your body is adapting to exercise and stress. Your device
gauges your blood oxygen level by shining light into the skin and checking how much light is absorbed. This is
referred to as SpO
2
.
On the device, your pulse oximeter readings appear as an SpO
2
percentage. On your Garmin Connect account,
you can view additional details about your pulse oximeter readings, including trends over multiple days (Turning
On Pulse Oximeter Sleep Tracking, page 14). For more information on pulse oximeter accuracy, go to
garmin.com/ataccuracy.
Getting Pulse Oximeter Readings
You can manually begin a pulse oximeter reading on your device at any time. The accuracy of these readings
can vary based on your blood flow, the device placement on your wrist, and your stillness (Tips for Erratic Pulse
Oximeter Data, page 29).
1 Wear the device above your wrist bone.
The device should be snug but comfortable.
2 Swipe to view the pulse oximeter widget.
3 Hold the arm wearing the device at heart level while the device reads your blood oxygen saturation.
4 Keep still.
The device displays your oxygen saturation as a percentage.
NOTE: You can turn on and view pulse oximeter sleep data in your Garmin Connect account (Turning On Pulse
Oximeter Sleep Tracking, page 14).
Heart Rate Features 13
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