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iOS 18 update suggests your AirPods could also get heart rate tracking
New code spotted in the iOS 18 release candidate build hints at heart rate tracking functionality coming to AirPods.
Code spotted in the latest iOS 18 release reveals that the feature will track users’ heart rate while they’re wearing both earbuds and send the results to the Health app. APG uses the speakers in ANC earbuds to send low-intensity ultrasound probing signals into the users’ ear canals and analyzes the echos captured by the onboard microphones to deliver a heart rate reading. In its eight-month-long field study, Google found that this technique offers a high level of accuracy without having a significant impact on battery life.
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