Apple Watch Series 10 (US) lacks blood oxygen detection due to patent dispute with Masimo.

The Apple Watch Series 10 sold in the U.S. will lack the blood oxygen detection feature, a result of Apple's patent dispute with Masimo. This feature was also missing in the Series 9 and Ultra 2 models. While it remains functional in other countries and in earlier versions, its absence in the Series 10 is likely due to software restrictions rather than hardware changes. Other health features, like sleep apnea detection, will still be available.

September 10, 2024
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