1.2 Inch AMOLED Color Screen1.2 Inch AMOLED high-resolution display, makes the displayed content more vivid and beautiful. Bigger screen, fit the width of the wrist, bring a pleasant feeling of wearing. The big-screen displays comprehensive and rich information, raise the wrist, efficiency is obvious.12 Sports Modes & GPS GLONASS Dual Satellite Positioning SystemThe AMAZFIT GTR smartwatch has built-in11 sports modes, Outdoor running, city running, walking, outdoor riding, city cycling, open water swimming, swimming pool, elliptical, boarding, trail running, skiing, exercising, opening the corresponding sports mode, measuring your sport data At the same time, the GPS GLONASS binary positioning system has been added to accurately record your movement trajectory and tell you the calories burned.Optical Sensor, 24-hour Heart Rate monitorThe AMAZFIT GTR smartwatch uses a new generation of high-precision optical sensors and algorithms for more accurate monitoring and lower power consumption. The all-day heart rate recording function allows you to see your heart rate changes throughout the day, discover abnormalities in time.Long Standby TimeIt's not easy to increase the length of life on a smartwatch with a rich feature set and AMOLED colorful display. But AMAZFIT GTR smartwatch with ensures about daily use mode: about 12 days; Basic watch mode: about 34 days; GPS continuous working time: about 22 hours for a full charging.More FunctionsThe AMAZFIT GTR smartwatch also has the function of, reading WeChat and SMS message, Health Tracker: Heart rate monitor, Pedometer, Sedentary reminder, Sleep monitor, Call reminder, APP Info push, GPS+Glonass, Bluetooth music, Weather, Time,compass, Alarm clock, Find Phone.