【 BUILT-IN USB PLUG 】 Fitness Tracker easy to charge with any USB block and computer; no charging cable and dock needed; one single charge gives you up to 15-20 days of working time.【 MULTIFUNCTION HEALTH MANGER 】 24-hour heart rate monitoring and activity tracking and automatically tracks your sleep duration & consistency with a comprehensive analysis of sleep quality data, helping you adjust yourself for a healthier lifestyle. Press and hold the touch point to switch the screen interface.【 WEAR COMFORTABLE & WATERPROOF 】 The fit watch are made from highly clear resin material and sealed with the case by high-frequency machine. NOTE: Please DO NOT press any buttons in the water or wear this watch for longtime underwater activities.
[sleep monitor] it can tracker with your sleep ,to help you know more about your sleep and health condition
[step count and tracker with the calorie consumption] when you are walking or running ,it can count steps and track with the calorie consumption
[Silent alarm clock] if you set an alarm , it can remind you by vibration mode
[Charge with any USB spot] it can charge with any USB spot ,and one full charge it can keep working 15-20 days
[waterproof] these activity trackers are waterproof, you do not need to worry when you wash your face or swim or rainy day.