Band length[mm] : 203 Band width[mm] : 20 Weight[g] : 54 Voice assistant built-in : no Bluetooth-compatible Version : 4.2 Wi-fi : YES Metrics measured : Other Activity Tracked : Other,Steps Tracker Touch Screen : YES Category : Smart Watches App name : SeTracker2 Screen Material : TFT CPU Model : SP9820E Band Detachable : Yes APP Download Available : Yes Battery Detachable : No Resolution : 240*240 Display Size : 1.4 full angle Style : Fashion Application Age Group : Child Screen Shape : Square Case Material : Plastic Band Material : Silica gel Waterproof Grade : Life Waterproof SIM Card Available : Yes Mechanism : No Multiple Dials : Yes GPS : Yes Network Mode : 4G Battery Capacity : >450mAh Rear Camera : 0.3MP RAM : 512mb ROM : 4GB System : Proprietary OS Type : On Wrist Compatibility : All Compatible Language : English,Russian,Spanish,Polish,Portuguese,Turkish,ITALIAN,French,German,Japanese,Ukrainian,Hebrew,Dutch,Arabic,Indonesian,Greek Function : Passometer,Message Reminder,Call Reminder,Answer Call,Dial Call,Remote Control,Push Message,24 hour instruction,Chronograph,Alarm Clock,World Time,Permanent Calendar,Power Reserve,week,Month,Interactive Music,Noctilucent,Calendar,Lighting,Calculators Certification : CE,FCC,RoHS Charging type : Magnetic Charging Battery capacity : 750mAh Language : Slovenian,Czech,Hungarian,Danish,Swedish,Melayu,Thai,Vietnamese,Lao