Loss of Pulse alerts are rolling out on Pixel Watch 3

It received FDA clearance back in February, but has been available in Europe for a few months.

by Victoria Song

Apr 8, 2025, 6:46 PM UTC

The Google Pixel Watch 3 resting in an orange case box surrounded by other colorful boxes.

Loss of Pulse is a relatively unique health feature in the smartwatch world.

Image: Amelia Holowaty Krales / The Verge

Victoria Song is a senior reporter focusing on wearables, health tech, and more with 13 years of experience. Before coming to The Verge, she worked for Gizmodo and PC Magazine.

Google is beginning to roll out its Loss of Pulse Detection feature to Pixel Watch 3 owners in the U.S.

Loss of Pulse Detection, the smartwatch’s marquee health feature, calls emergency services if the Pixel Watch 3 can’t pick up your heartbeat while wearing it. It was initially announced alongside the Pixel Watch 3 in August last year, and has been available for European users for months. However, because this is a high-stakes feature, it requires regulatory clearance — something Google didn’t get from the Food and Drug Administration until late February. Google says in a fact sheet that it tested the algorithm with over 100,000 hours of data to minimize false alerts, and has published a peer-reviewed study in Nature.

You’ll have to wait until you see a prompt on the watch to enable the opt-in feature. But don’t worry if you don’t see it just yet. While rollout starts today, Google spokesperson Bridget Starkey told The Verge in an email that users may see it over the next couple of weeks.

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