Google Unveils Life-Saving Feature: Loss of Pulse Detection for Pixel Watch 3 in the US

Summary of the Article

Google Rolls Out Loss of Pulse Detection for Pixel Watch 3 in the US

• April 2025 OTA Update: Google is now rolling out the Loss of Pulse Detection feature for the Pixel Watch 3 in the United States.
• FDA Clearance: The feature received Food and Drug Administration (FDA) clearance, which delayed its launch until April, despite an initial March release date.
• European Availability: This feature was previously available in Europe since last year.
• Enabling the Feature: Users need to ensure their Personal Safety Wear OS app is updated to version 2025.03.19.x and use the Pixel Watch companion app (version 3.4+) on their phone to enable Loss of Pulse Detection.
• Detection Mechanism: The feature uses the watch’s multipath heart rate monitor, other sensors, and an AI-based algorithm to detect a loss of pulse, which could indicate cardiac arrest, respiratory or circulatory failure, overdose, or poisoning.
• Emergency Response: Upon detection, the watch prompts the user to confirm they are okay. If there is no response or movement, it will call emergency services, provide the user's location, and details about the event.
• Caveats: The feature may not detect every instance of a loss of pulse and is not intended for users with pre-existing heart conditions or those requiring cardiac monitoring.
• More Details: Additional information is available on Google’s official documentation.