An all-new sensor and Google AI combine for Fitbit's most spot-on heart rate tracking yet. So you can get more precise health and fitness info. With Fitbit's body-response feature, get help identifying potential signs of stress, so that you can manage it in the moment. A built-in sensor tracks temperature variations that may be related to your sleep environment, menstrual cycle or changes in your wellness. Use the ECG app to assess your heart rhythm or get irregular heart rhythm notifications in the Fitbit app. Fall detection helps connect you to emergency services if you've had a hard fall, even auto-dialling if you're unresponsive. If you're feeling unsafe, your Pixel Watch 2 can easily alert trusted contacts or 999 with Emergency SOS. When out for a run or walking alone, set the timer. If it expires with no response, your watch can share your location with close contacts. Go even longer with 24 hours on a single charge and always-on display. Get more from your workouts with features like Auto Workout mode. Plus, set a goal with pace training when running to get real-time feedback. Pixel phones, tablets, watches and earbuds work together seamlessly to deliver personalised help from Google, when and where you need it.