DescriptionThis is a new Smart U Watch U8 which is compatible with all V3.0 enabled smartphones, tablets and PCs. Android System can support all function in the description. BUT iOS only support: Passometer, Calendar, Call Sync, Calculator, Clock, Stopwatch.Features- Color: Black.- Material: Import PC + ABS plastic alloy structure.- Size: 24.5 x 4.7 x 1.2 cm.- Charging mode: USB charging.- Transmitting Range: 10 meters- Talk Time: 3 hours.- Standby Time: 160 hours.- Power Supply: Built-in 230mAh rechargeable battery.- Languages: Chinese, English, German, French, Russian, Italian, Portuguese, Spanish, Turkish, Dutch.- Version: V3.0+EDR.- Touch Screen Size: 1.44 inch.- Display: High sensitive capacitive touch screen, perfect match technology Japan fine workmanship movement quartz movement with digital display- A pedometer, sedentary remind, recording, music playback, sleep monitoring, the function of the camera Mobile phone calls, text messages, phone synchronization Especially the altitude function. Best for the tour people- If the watch cannot be paired with iphone. Please kindly check 1, Did your phone conect with another smart watch before? Delete the APP. 2, If you have 2 phones and another already connect with this smart watch, please turn off your another phone and then try to pair with your iphone.- Ring reminder when your Android 2.3 or above smart phone receive a message Support hands-free calls, Answer or Dial calls from your wrist- Play the music in your phone (after paring) Sync phone book/SMS/call history(only for android phone Remote taking photo function: You can control your cellphone to take photo from your wrist.