Asus VivoWatch SP Mode D'emploi page 27

Pulse O2 level screen
Your ASUS VivoWatch SP features a wrist-based Pulse O2 level function. It
will help you determine how your body is acclimating to high altitudes for
alpine sports and expeditions.
Entering Pulse O2 level mode
To enter Pulse O2 level mode, swipe left or right to the screen that displays
Pulse O2 Level. Please wear it on your wrist and place your thumb and
index finger onto the electrode and the PPG sensor. Make sure your ASUS
VivoWatch SP sits properly on your wrist, the measurement will begin
automatically.
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