Google's Pixel Watch 3 has received FDA approval for Loss of Pulse Detection feature, which can detect impending death due to a stopped heart.Loss of Pulse Detection goes beyond detecting irregular heartbeats like atrial fibrillation and provides new functionality on a consumer wearable.The Pixel Watch 3 was initially available in some European countries and expanded to 15 countries as regulators approved the feature.FDA approval allows Google to activate the Loss of Pulse Detection feature and extend its support in the United States.