Google has introduced the Loss of Pulse Detection feature for the Pixel Watch 3 in the US, which was previously exclusive to Europe. Following an update in April 2025, this health-tracking capability allows the smartwatch to check the wearer's heart rate and, if necessary, contact emergency services if no pulse is detected. The feature monitors various medical emergencies, including cardiac arrest and overdose, and will vibrate to alert the user before reaching out to help if no response is detected. It requires a Wi-Fi connection or an active LTE carrier.
If a pulse isn't detected, the Google Pixel Watch 3 will vibrate and check in with the wearer to see if they need help. It is automatically dismissed if the smartwatch detects movement or a pulse.
The feature can call emergency services on the user's behalf if a pulse isn't detected, even if they are unconscious.
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