As Google describes the feature, "fall detection uses motion sensors built in ... trigger an accidental emergency call? Your Pixel Watch knows the difference between taking a hard fall and ...

When a fall is detected, the Pixel Watch will wait 30 seconds (for further movement) before vibrating, sounding an alarm ... and works by “sharing motion sensor data with Google.” ...

Google has announced that the much-awaited fall detection function for the Pixel ... data and other motion patterns to accurately detect real falls and minimize potential false alarms," the ...