Sport Calling Smart Watch Bluetooth w Sim Slot

Specifications:  SIM Card Frequency: GSM 850/900/1800/1900 MHz  Network & Connectivity:Only 2g network* Surface Treatment Technology: Stainless Steel Wire Drawing Primary Color  Passometer,Sleep Tracker,Calculators,24 hour instruction,Message Reminder,Calendar,Dial Call,Push Message,Alarm Clock,Answer Call,Week,Call Reminder LanguagePortuguese,Spanish,English,German,Greek,Polish,Russian,Italian,Dutch,French,TurkishCompatibilityAll CompatibleTypeOn WristSystemNoneROM128mbRAM<128MBRear Camera1.3MPBattery Capacity300-450mAhNetwork Mode2gGPSNoMultiple DialsNoMechanismNoSIM Card AvailableYesWaterproof GradeLife WaterproofBand MaterialSilica GelCase MaterialCarbon FibreScreen ShapeRoundApplication Age GroupAdultStyleSportMovement TypeElectronicDisplay Size1.54 inchResolution240 x 240 pixelCPU ManufacturerMediatekBattery DetachableYesAPP Download AvailableNoBand DetachableYesCPU ModelMTK6261DBrand NameDreaTDimensions(9.65 x 1.57 x 0.49)" / (24.5 x 4 x 1.25) cmCompatibilityandroid 4.2 a