Apple announced on Thursday that it would release iOS 18.6.1 for iPhones and watchOS 11.6.1 for Apple Watches so that Blood Oxygen monitoring could make a comeback on certain models – specifically, the Apple Watch Series 9, Series 10, and Ultra 2.
iOS 18.6.1 & watchOS 11.6.1 bring Blood Oxygen monitoring to previously excluded Apple Watch Series 9, 10 & Ultra 2 models
