AliveCor takes another loss in ongoing Apple Watch sensor legal battle

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.

Close-up of a smartwatch back with a silver case and brown leather strap held by a hand against a dark background.

The Apple Watch’s sensor has long been the subject of legal battle

The new win, detailed in a January 8, 2025, decision by the Court of Appeals for the Ninth Circuit, brings an end to AliveCor’s antitrust claims. It argued that Apple held a monopoly over access to the Apple Watch’s heart rate monitoring tech.

This comes after AliveCor’s patents related to similar technology were thrown out. The company had claimed the Apple Watch’s heart rate sensor tech infringed upon those patents, causing the atrial fibrillation detection feature to be temporarily removed from some models in the United States.

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