You can check your blood oxygen levels using your smart watch.
1.
From the Samsung Health app, scroll to and tap Blood oxygen.
If you do not see this option, you can add it by editing the Home panel of your phone's Health app.
2.
Tap Measure.
3.
Swipe to OK, following the instructions on the screen.
4.
Tap OK.
5.
You've completed the steps!
