You can check your blood oxygen levels using your smart watch.
1.
From the apps screen, swipe to Blood Oxygen.
You can view your apps in a list view if you prefer.
2.
Tap Blood Oxygen.
3.
Tap Start.
To get a more accurate reading, make sure your wrist is flat and the face of the Apple Watch is facing up.
4.
Tap the X icon.
5.
You've completed the steps!
