All-day Activity Tracking: Accurately record all-day activities like steps, distance, calories burned, miles walked, active minutes, sleep status and more. Stay motivated all day Heart Rate & Sleep Monitoring: Built-in the Nordic 51832 Chip, minimum size, lowest power consumption, highest integration. Data full accuracy and battery life is longer Tracks real-time heart rate automatically & continuously and automatically tracks your sleep duration & consistency with comprehensive analysis of sleep quality data, helping you adjust yourself for a healthier lifestyle.Multi-Sport Modes & Connected GPS: 14 exercise modes help you better understand specific activity data; Connect the GPS on your cellphone can show run stats like pace and distance and record a map of your workout route. Everything you need in a tiny tracker, heart rate monitor, step counter, stopwatch, reminder, calories counter, sleep monitor, supports 14 sports modes: Walk, Run, Spinning, Cycling, Dance, Climbing, Hike, Treadmill, Workout, Tennis, Yoga, Basketball, Football, Badminton.See Calls & Messages on Your Wrist: With a High-end Mobile Phone LCD Screen, the screen intensity is brighter Receive call, calendar, SMS and SNS (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) notifications on display; Vibrates to notify you of incoming calls and messages; reminds you to move after periods of inactivity and important dates, helping you stay connected, never miss the messages that matter.IP68 Waterproof & Long Battery Life: With IP68 waterproof, you can wear a sports watch while washing your hands, taking a bath and swimming (do not dive in the sea).Takes only 1-2 hours to fully charge and lasts up to 7-15 days standby.