Features: Heart Rate Sleep Monitoring : The watch tracks real-time heart rate for 24 hours erveryday continuously and monitor your sleep quality automatically at your rest time ,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 burned and provide with periodic data comparison feedbacks. Never Miss Call Message : Real-time messages and calls can be displayed automatically on the watch in full-text content . You will not miss any informations from this watch reminder. Long-lasting Battery Life Water-resistant : The level of waterproof is IP67 which allows you to wear it in the rain or when washing hands. 7 days of use or 15 days of standby when it is once full-charged . Easy Wireless Charging : With Plug-in charging design , it is convenient to be taken off and directely charged onto your computer ,laptop,charging adator or any power bank. It takes only 2 hours to be full-charged. No need the USB charger. Package Includes: 1 Piece Fitness Tracker Watch 1 Piece Wrist Band 1 Piece Manual 1 Piece Packing Box Specifications: Band Material: silicone Color: Black/Dark-Blue/Green/Cyan/Purple/Red Size: Approx. 175x83x31mm / 6.9x3.3x1.2 inches Weight: Approx. 43g / 1.52 ounces Main chip: Telink8266 Memory size: 512MB+16MB Display : 0.96inch TFT Color Screen(Resolution 80*160) Button Method: Touch Button Battery type: Lithium polymer battery Charging head specifications: 1A or less Charging method: USB Standby power consumption: Approx. Standby for 15 days, Normal Use for 5-7 days (calculated based on 80mAh battery) Bluetooth-compatible type: Bluetooth-compatible 4.0 Font type: Single /multi-language font Support APP: Lefun Health Battery capacity : 80mAh Charging voltage: 5.0V Charging current: 75MA Mobile phone system requirements: Support with iOS 8.0 and above; compatible system is And-roid 4.4 and above, and support Bluetooth-compatible 4.0 And-roid smartphone Function Sports record: Step Count, Exercise time, Exercise Mileage, Calorie Consumption, Sleep Monitoring, Save 30-day Exercise/Sleep Data. 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 you 3.Any Cellphone is not included.