Weight[g]:Mainland China SIM Card Slot:Yes Voice assistant built-in:YES Bluetooth-compatible Version:5.1 Wi-fi:No Metrics measured:other Activity Tracked:other,Distance Tracker Touch Screen:YES Category:Smart Watches App name:SeTracker 2 Screen Material:OLED Band Detachable:Yes APP Download Available:Yes Battery Detachable:No CPU Manufacturer:MediaTek Resolution:240*240 Display Size:1.4 Movement Type:Electronic Style:cute Application Age Group:child Screen Shape:SQUARE Case Material:RUBBER Band Material:Silica GEL Waterproof Grade:Life Waterproof SIM Card Available:Yes Mechanism:Yes Multiple Dials:Yes GPS:Yes Network Mode:4G Battery Capacity: 450mAh Rear Camera:0.3MP RAM: 128MB ROM: 128MB System:None Type:On Wrist Compatibility:All Compatible Language:English,Russian,Spanish,POLISH,Portuguese,Turkish,Italian,FRENCH,german,UKRAINIAN,Dutch Function:Passometer,sleep tracker,Call Reminder,Answer Call,Dial Call,Big Three Needles,24 hour instruction,Alarm Clock,Small Second,week,Month,Heart Rate Tracker,Calendar Brand Name:MIJIA Origin:Mainland China Certification:CE Xiaomi:GPS tracker function:Kids watches,Children smart watch,Location Tracker Attention : It only supprt these country Europe, Africa , Asia Pacific The 4G network version: GPS+LBS positioning, Locate more accurate; The 4G network version: 4G Network, VOLET Video call,Voice call,remote monitor ,LTE GPRS Data.connect more fast and stable; Language: English, Portuguese , Spanish, Germany, Turkish, Vietnamese, Russian, French, Italian, Swedish, Dutch, Polish, Thai, Danish, Czech, Norwegian, Hungarian, Slovak, Ukrainian. Packing List: 1x 4G Smart watch 1x Charge Cable 1x Instruction