QQQ Watch has US version and EU version. This listing is the US version which runs on 2G GSM 850/1900 MHz. It works in USA Canada Mexico Argentina Brazil and some American countries.</br>AQQ Watch supports GSM Nano SIM card. Plan with talk text and 2G data is required. We recommend T-mobile in the US.</br>Add up to 5 families and 16 friends on the app. QQ Watch automatically syncs contacts. You can make and receive calls easily.</br>Track your child's precise location. Press the SOS button to text family members and call the watch admin in case of emergency. Set up a safety zone on the app. Families members receive notifications when your child steps outside the safety zone.Other functions: Group chat take photos voice message text message add friends pedometer alarm history path weather etc.</br>Based on 256-bit security encryption algorithms the setup steps is a little complicated please be patient.the nano card is not included</br></br>Product Description</br></br><b>Note</b>:<br><br> US version runs on GSM 850/1900. It works in USA Canada Mexico Argentina?? Brazil and some American countries. <br> Please check GSM frequency bands used in your country and choose the right version. Please contact us if you have any questions.<br> Note: QQ Watch works like a 2G mobile phone. Please make sure the SIM card you buy will work on a 2G device.<br><br> Specification <br> General <br> Brand :Tencent <br> Model :PQ708 <br> Color: Yellow<br> Hardware <br><br> CPU: MTK6260D<br> Network: 2G GSM: 850/1900MHz <br> Screen: 1.22inch <br> Screen resolution :240 ?? 240 Pixels <br> Waterproof: Nm waterproof with IP65 level <br> Locating:Camera + WiFi + GPS + LBS + Gravity sensor <br> Communicate: Two-way conversation(16+5members) / Group chat/ Friend / Monito