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Apple Reinstates Blood Oxygen Monitoring for New Watches

8/15/2025

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Summary

Story summary

Apple will restore the blood oxygen monitoring feature for the Apple Watch Series 9, Series 10, and Ultra 2 on August 14.
The feature was removed in 2023 due to a patent dispute with Masimo.
Users need to update to iOS 18.6.1 and watchOS 11.6.1 to use the feature, which now relies on the paired iPhone.
Models sold outside the U.S. or before January 2024 will keep the original feature.
Legal disputes between Apple and Masimo are ongoing.

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Story summary

Apple will restore the blood oxygen monitoring feature for the Apple Watch Series 9, Series 10, and Ultra 2 on August 14.
The feature was removed in 2023 due to a patent dispute with Masimo.
Users need to update to iOS 18.6.1 and watchOS 11.6.1 to use the feature, which now relies on the paired iPhone.
Models sold outside the U.S. or before January 2024 will keep the original feature.
Legal disputes between Apple and Masimo are ongoing.