The Google Pixel Watch 3 has introduced a new feature called Loss of Pulse Detection, which is now available in the United States. This feature was previously launched in several European countries and the UK but required FDA approval to be released in the U.S. The function monitors pulse drops that may indicate severe health issues like cardiac arrest or circulatory failure. After receiving FDA clearance in March 2025, the feature is now accessible to American users. It involves a series of steps to alert the user and emergency services if no pulse is detected.

This life-saving tool works by vibrating the watch initially to check if the user needs help. If there’s no response or movement within 15 seconds, it emits a loud alert sound. Should the situation persist for about 30 seconds without detecting a pulse, the watch will contact emergency services automatically, providing them with the user's location and relevant information. Users must opt-in to activate this feature via the Personal Safety app on their watch and enable it through the Google Pixel Watch app on their smartphone.

Pulse Monitoring Technology: A Lifesaving Mechanism

The Loss of Pulse Detection feature represents a significant advancement in wearable technology. By continuously monitoring the user's pulse, it can identify critical situations such as cardiac arrest or respiratory failure. Once activated, the system follows a precise protocol designed to ensure the safety of the user while minimizing false alarms. This capability highlights the potential of smartwatches in transforming personal health management.

This feature operates by first checking if the user requires assistance through vibrations. If no action is taken, it progresses to an audible alarm. The system allows users to cancel alerts if they are mistakenly triggered. In cases where no pulse is detected after 30 seconds, the watch connects with emergency services. This automated process provides crucial information, including the user's location, to responders, potentially saving lives. Such functionality underscores the importance of integrating advanced health-monitoring tools into everyday wearables.

User Activation and Practical Application

To take advantage of this feature, users need to follow specific instructions provided by Google. These involve updating the Personal Safety app on their watches and enabling the function via the Google Pixel Watch app on their smartphones. This setup ensures that the device is ready to respond promptly in emergencies. Understanding how to activate and use this feature is essential for maximizing its benefits.

Users must actively choose to enable the Loss of Pulse Detection feature, following clear guidelines from Google. Once enabled, the smartwatch becomes a reliable companion in monitoring vital signs. The detailed activation process includes ensuring both the watch and connected phone apps are up-to-date. When activated, the watch not only detects potential health crises but also offers peace of mind to users. Its ability to initiate emergency responses quickly demonstrates the value of incorporating cutting-edge health technologies into wearable devices, ultimately enhancing personal safety and well-being.