The lost function: Seek mobile phone??Tow-way anti lost??Entertainment: MP3??MP4??Camera??Sync function: QQ??wechat??Twitter??Facebook??time??schedule??read message or news??Sport health: Pedometer??sedentary remind??sleep monitoring</br>Maximum compatibility. All Android Smartphones and Android Tablet PC. Such as Samsung?? HTC?? Sony?? LG?? HUAWEI?? ZTE?? OPPO?? XIAOMI and so on. Android Tablet PC: Samsung?? Nexus?? Onda?? Newsmy and so on.</br>Phone function: Make phone call directly from the smart watch??including answering and dial-up.SIM slot??support make calls by Bluetooth or smart watch</br>Note:Android system:This watch supports Android phone's Bluetooth?? APP download and connection?? you can also push your Android phone APP related"he watch?? APP not support android 5.0. Apple system: the watch supports Apple phone Bluetooth connection?? but don't support Apple phone APP download and connection??so your Apple phone's related application information can't be pushed to the watch</br>GSM850/900/1800/1900 four frequency call function call?? hands-free?? phone records?? phone book?? Bluetooth phone</br></br>Product Description</br></br>About US This watch has two working mode: One is company mode (Bluetooth) ?? It enable to make call or receive call or send or get message via Bluetooth The other one is Network mode (Sim Card inserted) .It enable to make call or receive call and send or get message via the sim card you inserted which means at this time this watch works as a real cellphone??you can hang out without your cellphone Features: - GSM 850 / 900 / 1800 / 1900 MHz?? Single Micro SIM Card - Bluetooth Dialer?? Call Reminder?? Bluetooth Call - Bluetooth SMS / IM Message Notified - 1.56"ch Screen 240*240 pixels - 2.0M Camera?? Video Recording Support - Anti-loss Technology to bind phone - Pedometer?? Sleep Monitor