Description:This model is equipped with SIM card and TF memory card slot, supports foreign SIM card, 4G/3G/2G card to make phone calls, unicom card mobile card, not telecom card, network type supports 2G network, not WIFI, can directly answer and make phone calls on the watch, can take photos, calculator, alarm clock, sitting reminder and other functions. If you don't have a SIM card, you can make and receive calls via BluetoothSupport touch screen operation, dial dial, synchronize phone book, mp3 music playback, call display, call vibration or ring tone reminder, alarm clock, etc. These three functions are Android only: remote photo taking, remote notification, and finding your phone.Features:GSM 850/900/1800/1900 MHz ,Single Micro SIM Card Bluetooth Dialer,Call Reminder, Bluetooth Call Bluetooth SMS/IM Message Notified1.56 inch TFT LCD Touch Screen 240*240 pixels 2.0M Camera,Support Anti-loss Technology to bind phone Pedometer, Sleep Monitor, Sedentary Reminder Audio and Video Player Calendar Specification:Network & Connectivity: SIM Card Type: Micro SIM Card Frequency: GSM 850/900/1800/1900 MHzBluetooth: Bluetooth 3.0Storage: RAM 128M, ROM 64M;External memory: 8GB memory card is optional,Support TF card up to 32GBDisplay: 1.56 inch TFT LCD, 240 x 240 pixelsCamera: 2.0 MSupport Media Music/video:Support Hand-writing:Support Picture Format: JPEG, GIF, BMP, PNG Music Format: MP3, WAVVideo Format: MP4Function: Bluetooth Dialer, Contacts, Call Reminder, Clock, Anti-loss, Pedometer, Sleep Monitor, Sedentary Reminder,Calendar Battery: 380 mAhTalking Time: 3 HoursStandby Time: 180 HoursSupport USB Port: Mini USB 5pinColor: Silver/BlackSize: 43.5*40*11.8 (mm)Product Weight: 75gGravity Sensor: SupportPackage included: 1x DZ09 smart watch1x USB Cable 1x User Manual