Google’s Pixel Watch 3 Detects Loss of Pulse, A Lifesaver
The Google Pixel Watch 3 introduces a groundbreaking feature: Loss of Pulse Detection. This innovative safety measure, currently exclusive to the Pixel Watch 3, immediately alerts emergency services if a user’s pulse vanishes. This development marks a significant leap in wearable technology’s life-saving capabilities.
How the New Feature Works
The primary sensors employed are the accelerometer and the PPG sensor. These sensors collaborate to identify a potential absence of pulse, which can then trigger emergency services.
“It uses sensors on the Pixel Watch to detect a potential loss of pulse and prompt a call to emergency services with either the user’s smartwatch or their connected phone.”
—Edward Shi, Product Manager, Google
The testing process included real-world data collection and clinical studies. The team also used stunt actors to mimic real-life scenarios, ensuring accuracy and minimizing false alarms. Wearable tech’s contribution to health and safety is highlighted by the continuous improvements like these, as emergency responders witness first-hand the usefulness of such technology.
From Idea to Implementation
The development of Loss of Pulse Detection took over 18 months, according to Edward Shi. The product team had to navigate specific hurdles for this functionality.
Simulating a loss of pulse was particularly challenging, achieved using a pneumatic tourniquet. The team also incorporated stunt actors to mimic situations and verify accurate detection.
Broader Implications
Shi stated the aim is to make the feature widely available on future Pixel Watches. Competitors in the tech world are likely to pursue their own versions.
The feature is designed to detect an immediate loss of pulse and is not meant to diagnose medical conditions. For health concerns, consulting medical professionals is still essential. The U.S. Food and Drug Administration (FDA) clearance involved a detailed procedure to verify the product’s quality.
Beyond Loss of Pulse Detection, Google’s Safety Team is exploring other safety enhancements. The goal is to provide users with increased peace of mind, whether in an emergency or during daily activities.
