Apple Watch Blood Oxygen Tracker Back in US With Workaround

Apple Watch Blood Oxygen Tracker Back in US

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By Mark Gurman

August 14, 2025 at 1:14 PM UTC

Updated on

August 14, 2025 at 2:17 PM UTC

Apple Inc. is restoring the blood oxygen tracking feature on its smartwatch in the US following a years-long legal fight.

The feature — which was removed at the end of 2023 due to a patent infringement lawsuit filed by Masimo Corp. and a US Customs injunction — will return for Apple Watch owners who bought models with the feature disabled, the company said Thursday, citing a ruling by US Customs.