D31 Android 8.1 4G 1and8G Phone Watch Children GPS Tracker Voice Call SOS Function Kids Smart Watch - Pink Built-in GPS,allowing you to know your child's location in time and view historical journeys,ensuring your child's safety It allows parents to communicate with their children at any time,making it easy to understand their children's situation 4G smart watch phone with two-way video calling feature,face to face video talk with your child anytime anywhere It supports SOS,press SOS button for 5 seconds for helping in case of emergency IPX7 waterproof,no worry getting wet when washing hands Specification: Overall Size: 236.6x43.6x15.1mm (Include watch strap) Weight: 55g Material: ABSandPCandsoft silicone Main Chipset: SL8521E from Spreadtrum Communications,Inc. GPS Chipset: Built-in Operation system: Android 4.4 Sim Card Slot: Nano SIM card slot Frequency Bands (Optional): 4G FDD:Band B1 B2 B3 B5 B7 B8 B20 3G WCDMA: Band 1 or 2 or 4 or 5 or 8 2G GSM: Band 2 or 3 or 5 or 8 Location Mode: GPSandAGPSandLBSandWiFi GPS Location Precision: 5-15m LBS Location Precision: 100-1000m LTE or GPS Antenna: Internal Battery: Built-in 700mAh polymer battery Vibration: support Cable Type: 4PIN magnetic charging cable Display Screen: 1.4 inch IPS color touch screen,240x240 pixels Physical Button: Power button (SOS) Camera: 0.3MP Pixels Video Call: support Waterproof Level: IPX7 APP Language: Chinese or Danish or Dutch or English or French or German or Greek or Hindi or Hungarian or Indonesian or Italian or Malay or Pilipino or Polish or Portuguese or Russian or Spanish or Swedish or Thai or Turkish or Vietnamese Watch Language: Indonesian,Malaysian,German,English,Spanish,French,Italian,Hungarian Dutch Polish,Portuguese,Slovak,Swedish,Vietnamese,Turkish,Russian,Thai,Arabic,Ukrainian,support customization Functions: Location: GPSandAGPSandLBSandWIFI location,Geo-fence,Route playback Communication: SOS,2-way phone call,Voice and Text message,Remote monitor,Video call,VOLTE Health: Pedometer,Sleep monitor Notification mode: vibration,voice,silence Others: No disturbing time,SMS alerts(low-voltage remind or SOS remind),Remote shutdown,Alarm clock,Watch finder,math game,Class schedule,Make friend,Camera,Rewards,Bluetooth,etc Package included: 1 x Smart Watch 1 x Magnetic Charge Cable 1 x English and Chinese User Manual 1 x Screwdriver 1 x Screw Other things not included