Specification           Size       48.5*43.5*13.0 mm  \/ 12.3*11*3.3 inch length:48.5*43.5*265 mm  \/12.3*11*67.3inch ( watch case+band)           Packing size       95*95*80mm (color box)    20pcs\/carton  50*21*19cm(Carton size)           Weight       Net weight: 54g   Package weight: 175g  Carton weight:3850g           Material       Polycarbonate+TPU+Silicone \/ double shot molding            Strap Material       TPU band+German Imported Bayer Polycarbonate+ 304 Stainless Steel Buckle           Color       Blk+Orange、 Blk+gray           Hardware Specification           CPU       MTK2502C           Memory       128M+64M           Display       1.54” IPS HD Screen  LCD; 240*240 pixel            Touch Screen       Waterproof capacitive touch screen           Bluetooth       Version4.0+3.0           SIM card       Micro SIM           Interface       waterproof charge dock           Battery       Rechargeable Lithium battery 300 mAh、stand by: 96 hours、 Working time: 48 hours      Talk time: 4 - 4.5 hours           Acceleration\/Gyroscope       3axis、 3DAcceleration、 Step Analysis、 sedentary Remind、 heart rate & sleep monitoring、 anti lost、 remote capture、voice call、music play etc.                Waterproof Level       SGS IP68 international waterproof certification、 underwater 1-2 meter  for 30mins. It's a rarely rugged waterproof smart watch、 never miss a call while enjoy running 、drifting、surfing、 swimming etc.           Support System       Nucleus\/ IOS 7.0 &  Android 4.4           Main Function                        Android system       IOS system           SIM card Dialing       Without SIM card inserted、 it's used to be a phone mate which connect with phone via bluetooth. With SIM card inserted、 it can be used as an independent smart watch phone.       Support       Support                Call Quality       Clear talk quality through high -sensitiveness silicon microphone       Support       Support           Siri Voice Call       Voice Dial-out a call via Siri、 make hands free       support       support           Bluetooth Phone       V4.0+3.0 Bluetooth Phone Call、 Hands free       Support       Support           SMS       SMS Push via remote notifier、 sync SMS       Support       Support           Music       Bluetooth Music Player       Support       Support           Phone Book       500 Phone books、 sync phonebook to watch       Support       Support           Call Reminder       Ring and vibrate、 Voice Call & Dial-out       Support       Support           Clock Display       4 Sets of display clock、 touch seconds to switch freely       Support       Support           Calendar       Calendar function       Support       Support           Two-way Anti-Lost