1、CPU MTK6580 quad core 1.3GHZ, ROM 4GB + Random-access Memory 512MB 2、Aluminum watchcase with anodic oxidation processing, CNC manufacturing 3、1.39 inch UHD AMOLED whole round screen, resolution 400*400 pixel, OGS capacitive screen, Non-air-gap 4、Built-in Android 5.1 OS, easy online upgrade 5、3G supported, micro SIM WCDMA. Support pedometer, heart rating, anti-theft etc Features: 1. CPU MTK6580 quad core 1.3GHZ, ROM 4GB + Random-access Memory 512MB. 2. Aluminum watchcase with anodic oxidation processing, CNC manufacturing. 3. 1.39 inch UHD AMOLED whole round screen, resolution 400*400 pixel, OGS capacitive screen, Non-air-gap. 4. Built-in Android 5.1 OS, easy online upgrade. 5. 3G supported, micro SIM WCDMA. 6. BT 4.0 +WIFI. 7. Accurate GPS. 8. Camera 2.0 Mega pixel. 9. Support pedometer, heart rating, anti-theft etc. 10. Support IOS and Andriod connecting. Specifications: < Facade Specification Dimension 46* 56* 13.5*285mm Appearance finish technology Alluminum,Anodic Oxidation,CNC Hardware Specification: CPU MTK6580  Quad core 1.3Ghz OS Android 5.1 Random-access Memory 512MB ROM 4GB Display 1.39 inch AMOLED whole round HD, resolution: 400*400 pixel, 260000 colors Touch screen OGS Capacitive Screen,full bonding technology Sensors G-sensor, heart rate sensor, sensor hub Speaker Enclosed speaker Vibration motor Yes Mic Yes Bluetooth Ver 4.0,  compatible for both IOS and Android. Battery 400mAh High Power Polymer battery Connector 4 pins magnetic connecting, charge and data transfer Main function: Phone function NANO SIM Card 3G WCDMA 850/2100; 2G GSM 850/900/1800/1900 quad-bands SMS Support Caller ID display Support WIFI Support GPS Support Music Support Heart rate monitor Yes, the real sensor, accurateness above 95% Pedometer Yes, automatically running, including Step records, Calories calculation, Distance calculation Camera 2.0 mega pixel (interpolation) OS online upgrade Yes Info bluetooth sync Yes Screen on gesture Yes Google map Yes Google Play Yes Google Now Yes Weather Yes Sound recorder Yes Browser Yes Calendar Yes Applications download, install and uninstall, 2 modes of UI patent design Anti-lost Anti-lost remind Bidirectional search Remote control Remote control music Remote control camera Watch face 11 types patent design watch faces Color Black, White, Red, Rose Gold (Optional) Package Included: 1 x Smart Bluetooth Watch 1 x User Manual