Oxygen saturation measurement API for Samsung Galaxy Watch 4 (Wear OS)

• tried to use Samsung Health SDK, but it doesn't work on watch
• also, Android Health Services don't work on real device
• Google fit API does not suit me (the comment from here)

any other oxygen saturation API for Wear OS?

For a while, oxygen saturation measurement API is not supported on Galaxy Watch 4 (answered by Samsung Developers team on 5 October 2021)

Oxygen saturation measurement API is available in Samsung Privileged Health SDK (answered by Samsung Developers team on 30 March 2022)