User Manual: http://img.banggood.com/file/products/20181203211752NORTHEDGEGPSSmartWatch-UserManual.pdf General Specification Brand NORTH EDGE Model GPS Color Black bluetooth Version BT 4.0 or above Compatible OS Android 4.4 or above iOS 8.0 or above Operating Mode Touch Button APP Name UWear App Language Russian,German,Italian,Japanese,French,Simplified Chinese,English,Spanish Special Features Waterproof 5ATM Heart Rate Monitor Support Blood Pressure Monitor / Blood Oxygen Monitor / Sleep Monitor Support Multi-sport Modes Support Call orMessage Reminder Support Reject Call Support Notification Support Facebook,Twitter,Wechat, WhatsApp etc. Alert Type Vibration Auto Light-up Screen Support Stopwatch Support Other Functions Support Pedometer,Alarm,Calender,Sedentary reminder,Camera remote control,Anti-lost, Technical Parameters Bulit in GPS+BDS+GLONASS Screen Size:0.96 Inch Type:TFT Screen Resolution: 80*160pixels Battery Battery Capacity: 180mAh Standby Time: About 15days Using time: About 8hours(GPS turn on all day) Charging Time: About 2hours Charging Type: Clamp charging Appearance & Details Band Material: Silicone Length: about 230mm Width: about 19mm Weight and Size Product size: 57*22*11.8mm Product weight:19g 1*NORTH EDGE GPS Smart Bracelet 1*Charging Cable 1*User Manual Tips: 1.Display and light of shoot will affect the color of the products, pictures for reference only, subject to our available products. 2.Please download the app before usage in order to compatible pe