All-day Activity Tracking: Accurately record all-day activities like steps, distance, calories burned, active minutes and sleep status Multi-Sport Tracking: 14 exercise modes help you better understand every activity data (8 default exercise modes and additional 6 exercise modes can be added); tap the tracker to monitor a variety of exercises and read exercise data report in app Auto Heart Rate and Sleep Monitoring: Track real-time heart rate automatically and continuously; know your all-day heart rate and view heart rate curve to get a clear picture of your health; automatically track your sleep duration and consistency with comprehensive analysis of sleep quality data Never Miss Calls and Messages: See call, SMS and SNS notification on your wrist to keep your phone out of sight and your goals in focus Built-in USB Plug: Built-in USB plug makes it easy to charge with any USB block and computer; no charging cable and dock needed; one single charge gives you up to 7 days of working time