NO.1 D7 Smart watch 500 mAh battery standby time 5 days with sim card

NO.1 D7 Smart watch https://goo.gl/Xftgsd : with Dynamic heart rate. Dual-core is more power efficient. It can insert SIM card and use it like a smartphone. The 500 mAh battery that can stand for 5 days. —————————————————————————————————————— Website: http://en.001phone.cn/ Facebook: https://www.facebook.com/001phones/ vk: https://vk.com/no1phones Google+: https://plus.google.com/b/10346546647... Watch Face: http://www.watchfaceup.com/ Blog: http://www.chinawatchs.com/