If you have an Apple Watch Series 9, 10, or Ultra Watch 2 that you bought in the US in the past year, you'll finally get the blood oxygen sensing feature back via a software update later today, according to Apple .

To make sure you get the feature, update your paired iPhone to iOS 18.6.1 and the Apple Watch to watchOS 11.6.1. Sensor data will be calculated in the app, and you will be able to see your blood oxygen in the Respiratory section of the Health app. If you bought your watch before 2024 or outside of the US, you won’t see any changes.

A recent US Customs ruling resolved a years-long dispute with health tech company Masimo . In 2021, Masimo sued Apple, claiming the Apple Watch maker infringed on one of its patents for optical blood monitoring. A judge ruled that Apple inf

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