screen                   1.39 inch AMOLED whole round HD；resolution：400*400 pixel；
Appearance          Alluminum,Anodic Oxidation,CNC
Battery                    400mAh High Power Polymer battery
CPU                        MTK6580  Quad core 1.3Ghz 
OS                           Application Android 5.1
RAM/ROM              512MB /4G  (1GB/8GB can customize)
GSM Frequency    NANO SIM Card 3G WCDMA 850/2100; 
                                2G GSM 850/900/1800/1900 quad-bands；
Bluetooth                Ver 4.0,  compatible for both IOS and Android.
Main function:        Sync SMS, Caller ID display, wifi, GPS,
Camera                  Camera 2.0 Mega pixel