Starting today, blood oxygen monitoring is returning to the Apple Watch for users in the US. Apple is rolling out a software update that enables a redesigned version of the feature on the Apple Watch Series 9, 10, and Ultra 2. This follows the import ban imposed by the International Trade Commission, which has prevented users in the U.S. from accessing this data for over a year.

Users in the U.S. who have one of the newer Apple watches will need to update their watch to WatchOS 11.6.1 today. However, there’s a slight catch: you’ll also need to update your connected iPhone to iOS 18.6.1, as to get around the import ban, the blood oxygen data will only be viewable on your iPhone. Following the update, the Apple Watch will measure blood oxygen, and you’ll be able to view it in the Health app

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