Z50 Bluetooth Smart Watch Support SIM with1.54" NFC Anti Lost Sleep Tracker Smartwatch Specification: Module Number: Z50 Style: Fashion & Casual Gender: Female & Male Watch Size: 47.0*40.6*11.8mm Surface handing techniques: Metal Electroplate Bluetooth: BT3.0 GSM Networks: GSM850/900/1800/1900MHZ Battery Capacity: 430mAh Screen Resolution: 240*240 Function: Message, Call Records, Bluetooth Dialer, Remote Notification, Remote Camera, Anti-lost, Pedometer, Sleep Monitoring, Sedentary Remind, Clock, Calendar, Calculator, Music Player, Video Player Attention: 1. Pairing connection for the first time, without using bluetooth pairing method, only need close NFC on the watchband to mobile phone NFC antenna location nearly. 2. Please charge fully before use, charging time need more than 2 hours. 3. To prevent others use your product without authorization, the original password is 1122. In order to ensure the security of your personal information, please modify the original password and remember it. 4. Music function, because of there are different mobile phones, some will show the name of the song, some mobile phone is can not show the name of the song, this is normal. 5. The color of the PU watch band is random. 6. The smartwatch is used with Android. Package include: 1 X Wrist Watch 1 X USB Cable 2 X Batteries 1 X PU Band 1 X English Manual Notice: The picture is only for reference,please consider carefully before purchase.