the revamped Blood Oxygen functionality to the newest iOS 26 and watchOS 26 beta versions. This update was initially released last week in iOS 18.6.1 and watchOS 11.6.1, but developers and public beta testers in the U.S. can now experience it before the official launch. For those moving directly from iOS 18.6 to iOS 26 next month, the modification will already be in effect, so they won’t observe any changes in that aspect.
Following a year and a half without this capability on the latest Apple Watch Series 9, Series 10, and Ultra 2 models due to a legal dispute, Apple successfully reimagined the Blood Oxygen app experience. The information gathered by the Apple Watch is now processed on the iPhone, enabling U.S. users to view the correct readings.
That being said, there is additional information regarding iOS 26 beta 7.
