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Blood oxygen tracking is set to return to Apple Watches in the US – but a new lawsuit could block it



  • Apple Watch fans are due to get the blood oxygen feature back on certain watches, after a lawsuit by health tech company Masimo
  • The feature now involves a slight workaround, in which the measurement can only be displayed on an iPhone
  • Masimo is suing the U.S. Customs Department for allowing the workaround to go ahead

Apple Watch users in the US are finally about to get a health feature back, as the watchOS 26 public beta launched with access to the blood oxygen feature – sort of.

The feature was removed for US fans after health technology company Masimo sued Apple, claiming it willfully violated Masimo’s intellectual property by way of its patented blood oxygen feature. As a result, the feature was temporarily disabled on the Apple Watch Series 9, Apple Watch Series 10, and Apple Watch Ultra 2.



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