Features:Heart Rate & Sleep Monitoring : The watch tracks real-time heart rate for 24 hours erveryday continuously and monitor your sleep quality automatically ,helping you collect and record health datas and adjust yourself to build a healthier lifestyle.All-day Activity Tracking : The watch records all-days activities like steps,distance,calories consumption.Never Miss Call & Message : Real-time messages and calls Reminder. You will not miss any Call/SMS from the vibration .IP67 Waterproof : The level of waterproof is IP67 which allows you to wear it in the rain or when washing hands. Long Time Use: Normally 5 days of use or 10 days of standby when it is once full-charged . Package Includes:1 Piece Fitness Tracker Watch 1 Piece Manual1 Piece Packing Box Specifications:Band Material: SiliconeColor: Black/Blue/RedSize: Approx. 13x8x3cm / 5.1x3.1x1.2 inWeight: Approx. 45g / 1.59 ozDisplay : 0.96inch TFT Color ScreenButton Method: Touch ButtonBattery type: Lithium polymer batteryBattery capacity : 50mAhFunction Sports record: Step Count, Exercise time, Exercise Mileage, Calorie Consumption, Sleep Monitoring etc. note:1.Please allow +/- 0-1g , +/- 1-3cm error due to manual measurement. pls make sure you do not mind before you order.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you3.Any Cellphone is not included.