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Pulse Oximeter
The device has a wrist-based pulse oximeter to gauge the saturation of oxygen in your blood. Knowing your
oxygen saturation can be valuable in understanding your overall health and help you determine how your body
is adapting to altitude. 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
On the device, your pulse oximeter readings appear as an SpO
you can view additional details about your pulse oximeter readings, including trends over multiple days
(Activating Pulse Oximeter Sleep Tracking, page
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.
1 Wear the device above your wrist bone.
The device should be snug but comfortable.
2 Hold the touchscreen to view the menu.
3 Select
>
.
4 Hold the arm wearing the device at heart level while the device reads your blood oxygen saturation.
5 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
Oximeter Sleep Tracking, page
Activating Pulse Oximeter Sleep Tracking
You can set your device to measure your blood oxygen level, or SpO
sleep window
(Tips for Erratic Pulse Oximeter Data, page
1 From the settings menu in the Garmin Connect app, select Garmin Devices.
2 Select your device.
3 Select Activity Tracking > Pulse Ox.
4 Select Pulse Ox Sleep Tracking.
NOTE: Unusual sleep positions could cause abnormally low sleep-time SpO
About VO2 Max. Estimates
VO2 max. is the maximum volume of oxygen (in milliliters) you can consume per minute per kilogram of body
weight at your maximum performance. In simple terms, VO2 max. is an indication of cardiovascular strength
and should increase as your level of fitness improves.
On the device, your VO2 max. estimate appears as a number and description. On your Garmin Connect account,
you can view additional details about your VO2 max. estimate.
VO2 max. data is provided by Firstbeat Analytics. VO2 max. analysis is provided with permission from The
Cooper Institute
®
. For more information, see the appendix
www.CooperInstitute.org.
Heart Rate Features
13). For more information on pulse oximeter accuracy, go to
13).
.
2
percentage. On your Garmin Connect account,
2
, for up to 4 hours during your defined
2
26).
(VO2 Max. Standard Ratings, page
(Activating Pulse
readings.
2
29), and go to
13