Advanced Positioning SystemEquipped with six-fold joint positioning including GPS, GLONASS, BeiDou, Galileo, QZSS, and IRNSS for precise location tracking Comprehensive Health MonitoringFeatures heart rate sensor, blood oxygen measurement, and Savi sleep monitoring algorithm for accurate health tracking Large HD Display2.01-inch TFT high-definition screen with 240*296 resolution for clear visibility of all your data Long Battery Life420mAh high-pressure pure cobalt battery provides 5-7 days of working time and up to 45 days of standby time Versatile Sports ModesOffers 178 different sport modes to cater to various fitness activities and tracking needs Fast GPS ConnectionCold start GPS in 45-60 seconds, 6-10 seconds after connecting to the app without phone, and 4-5 seconds with phone connected Specifications: Display: 2.01-inch TFT screen, 240*296 resolution CPU: Actions AT3085 Positioning: 1165W, six positioning: GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS Bluetooth: BLE 5.3 Heart Rate Sensor: VC30FSG-sensor Accelerometer: SC7A20 Battery: 420mAh high-pressure pure cobalt battery Working Time: 5-7 days Standby Time: Approximately 45 days Touch: 2.5D Full screen touch Buttons: 2 buttons with encoder Sport Modes: 178 different modes Compatibility: Android 5.0+ and iOS 9.0+, for iPhone 5S and above Package included: 1 x Watch 1 x Cable 1 x English and Chinese Manual