https://us.community.samsung.com/t5/Galaxy-Ring/Why-can-t-blood-oxygen-be-measured-proactively-on-the-Galaxy/m-p/3230310#M1167 <P><a href="https://us.community.samsung.com/t5/user/viewprofilepage/user-id/48497858">@Lidya</a>&nbsp;I'm thinking because you have to stationary to get a good blood oxygen level. That is why it is done while you are sleeping. If it attempts to do it at random times, most will fail and just uselessly use battery.&nbsp;</P> <P>Click the Measure button in Samsung Health and you will see the instructions.</P> Sat, 10 May 2025 15:54:26 GMT LongHiker 2025-05-10T15:54:26Z