4fds2awqiufeng dz09 smart watch1

synchronization function: whatsapp, twitter, facebook, browser (need to place a 2g / 2.5g network sim card); time, plan, read text information; exercise health: pedometer, sleep monitoring, static reminder; telephone function: making calls directly through smart watch, including answering and dialing. sim slot, single sim card (micro sim card) can be used as a mobile phone, bluetooth or smart watch can support answering calls; gsm / gprs 850 / 900 / 1800 / 1900 (2g); no call, call record, phone