Apple has your health in mind when it comes to the Apple Watch, which is why it added a blood oxygen sensor starting with the Series 6. This technology can tell if you’re getting enough oxygen to your ...

A redesigned blood oxygen measurement capability will arrive Thursday for Apple Watch models that lost access to the feature due to a patent dispute. Apple found a workaround that involves the Apple ...

A U.S. Customs ruling has allowed Apple to restore blood oxygen readings for U.S. Apple Watch buyers for whom the feature was disabled in early 2024. For these users, the redesigned approach works by ...

The USITC has started a new investigation looking at the Apple Watch, to see if the blood oxygenation sensing changes implemented earlier in 2025 still infringe patents held by medical tech company ...

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Apple released new system software for iPhone and Apple Watch on Thursday to return blood oxygen sensing to all Apple Watch users, removing a limitation that irritated many in the United States.

For heart rate testing, Horst used a Polar H10 chest strap as the benchmark. The Apple Watch Ultra 2, running watchOS 26 beta, delivered results that were nearly identical to the strap during indoor ...

Apple has picked up another win in its legal battle with health tech firm AliveCor, this time over antitrust claims relating to the Apple Watch. The new win, detailed in a January 8, 2026, decision by ...

A new comparison of smartwatch health sensors has given the Apple Watch Ultra 2 the edge over some of its biggest rivals. The study by bioinformatics scientist Rob ter Horst (The Quantified Scientist ...