How reliable is the SPo2 readings on the Galaxy Watch 4. I'm surprised to see it this low. Can cold environments cause stuff like this? : r/GalaxyWatch
Galaxy Watch 3: Samsungs erstes Update aktiviert unter anderem die Blutsauerstoffmessung - Notebookcheck.com News
Samsung Galaxy Watch 3 Review
Does the Samsung Galaxy Watch 4 support blood oxygen monitoring? | Android Central