Make sure your Apple Watch is snug on your wrist Press the Digital Crown to open the app list or view Open the Blood Oxygen app (red and blue circle) Place your arm on a table, or your lap, and make sure you keep still and the Apple Watch face is up Tap Start Keep still for 15 seconds Your results will appear on screen after 15 seconds Tap Done
Where to find your blood oxygen measurements on Apple Watch #
Open the Health app on iPhone Tap on the Browse tab Tap on Respiratory Tap Blood Oxygen Tap on Show More Blood Oxygen Data to see more
