A Long-Awaited Feature Finally Arrives
When Google introduced the Pixel Watch 3, it came packed with promise—especially around health features. One standout function, Loss of Pulse Detection, was notably missing at launch due to pending FDA approval. Now, after months of anticipation, Google has received the green light and begun rolling out this advanced, medical-grade feature via an update to the watch’s “Personal Safety” app.
What Is Loss of Pulse Detection?
Loss of Pulse Detection takes heart monitoring to a whole new level. Instead of just logging heart rate data during workouts or daily routines, this feature actively scans for any sudden absence of pulse—potentially indicating a serious medical emergency. Once activated, the Pixel Watch 3 can detect irregularities and alert you immediately. If no response is received, it escalates the alert and can even contact emergency services on your behalf, assuming all technical conditions (like signal and battery) are met.
How the Technology Works
The watch uses concurrent passive algorithms to check your pulse every second. If it doesn’t detect a pulse, the system immediately activates more sensitive sensors to double-check that it’s not just a false reading—like when the watch is off your wrist. If no valid pulse is detected, the system initiates an alert sequence. First, it prompts you to respond. If there’s no input, a countdown begins toward automatically calling for help. All of this is driven by Google’s AI-powered analysis, which considers multiple data points including heart rate and motion to ensure accuracy.
Limitations and Responsible Use
Despite its potential to save lives, Google is clear that the feature isn’t foolproof. It may not catch every instance of pulse loss, and it may sometimes trigger false alarms. It’s also not designed for individuals with existing heart conditions who require continuous medical monitoring. Additionally, any emergency calls made from the watch are subject to cellular or Wi-Fi availability, and a strong connection is essential. For Wi-Fi-only models, the paired phone must be nearby and connected.
How to Enable the Feature
The Loss of Pulse Detection isn’t part of a typical system update. Instead, it’s introduced through an update to the “Personal Safety” app, which comes pre-installed on the Pixel Watch 3. You can find the toggle to activate this feature under the “Safety & Emergency” settings within the app.
Reliable Battery Replacement for Your Smartwatch
As health monitoring becomes more advanced, so does the need for dependable battery performance in your smartwatch. If your Pixel Watch or any other smart wearable starts showing signs of battery fatigue, it’s a good idea to replace it before it impacts performance. Visit https://www.ultrabookbattery.com/smart-watch-battery for high-performance, cost-effective smartwatch replacement batteries. With a one-year warranty and 30-day return policy, it’s a trustworthy destination for keeping your wearable in top shape.