Features: Ultra clear display for easy reading at a glance, more than 100 watch faces selectable. Four major global positioning system provides mapping and navigation. Monitors 24-hour heart rate, blood oxygen saturation, sleep and stress, keeps you in know of your health. Multiple built-in sport modes, like running, cycling, swimming, hiking, etc. suit your choice of activities whether indoors or outdoors. Support music control, camera remote control, message/incoming call notifications, alarm, timer, stopwatch, compass, sedentary reminder. Built-in 580mAh rechargeable battery can last for up to 7 days. IP68 waterproof for normal use in daily life. Specifications: Material: PC + Stainless steel Resolution: 283*240 Display: 1.52" TFT color screen Battery: 580mAh li-polymer battery Charging Time: Approx. 2 hours Battery: 7 days Waterproof Level: IP68 Wrist Size: 155-220mm Dimension: 44 * 48 * 12.5mm Weight: 55g Package List: 1 * Sport Watch 1 * Charging Cable 1 * User Manual