iOS 18.6.1 and watchOS 11.6.1 Released: Blood Oxygen Monitoring Returns to U.S. Apple Watches

MacRumors
By Juli CloverAug 14, 2025, 1:10 pm161 pts
Apple today released iOS 18.6.1 for the iPhone and watchOS 11.6.1 for the Apple Watch Series 9, Apple Watch Series 10, and Apple Watch Ultra 2. The updates re-enable blood oxygen monitoring in the United States. iOS 18.6.1 can be downloaded on eligible iPhones over-the-air by going to Settings > General >…

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