With a new sensor and Google's AI, Fitbit offers very accurate heart rate tracking. This allows you to benefit from more precise fitness data. Fitbit's Body Responses feature helps you identify potential signs of stress and react immediately. The built-in sensor tracks temperature variations that may be related to your sleep environment, menstrual cycle, or a change that affects your well-being. Fall detection connects you to emergency services in case of a sudden fall and dials the number if you do not respond. If you do not feel safe, the Pixel Watch 2 can easily alert your trusted contacts or 112 through SOS Emergency. Set the timer before going for a run or walk alone. If there is no response, your location will be transmitted to your close contacts. Use your watch even longer with 24 hours of battery life on a single charge and Always-on mode. Make the most of your workouts with features like automatic workout mode and set a pace goal to receive real-time feedback while running. Pixel phones, tablets, watches, and earphones work together to provide you with Google's personalized assistance when and where you need it.