Pixel Watch 3 Cleared to Automatically Call an Ambulance When Your Heart Stops
Feb 28, 2025, 12:09 PM by Rich Brome @rbrome.bsky.social

Google has received clearance from the U.S. Food and Drug Administration (FDA) to launch its "Loss of Pulse Detection" feature of the Pixel Watch 3 in the US. The Pixel Watch 3 already offers heart rate monitoring for health and fitness features. Now, it can use the same sensors to detect when your heart stops beating "from an event like primary cardiac arrest, respiratory or circulatory failure, overdose or poisoning". It can then "automatically prompt a call to emergency services for potentially life-saving care if you’re unresponsive." Having received this approval, Google will enable the feature via software update at the end of March. The feature is already available in 14 other countries. The feature requires US regulatory approval because it essentially makes the Pixel Watch 3 a medical device.
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