Lionix Y1 Smart Watch support Nano SIM Card and TF Card With Whatsapp and Facebook & Twitter APP smartwatch on sale Y1 Smart Watch Features: CPU: MTK6261D Screen: Touch Screen ,1.54 inches IPS ,240*240 pixel Battery: 280mAh Moto: 0827 TF Card : MAX support 32GB SIM Card: Support Nano SIM G Sensor: Yes GSM: GSM850/900/1800/1900MHz Bluetooth: 3.0LE Functions: Calendar,clock,tape recorder,calculator,settings, file manager, pedometer,sleep monitoring. 3 sets the clock display, free to switch Function:Permanent Calendar,Answer Call,Compass,Calender GSM :850/900/1800/1900 Quad-band calling Dial, hands-free calls, call history, phone book BT Calling BT Message: QQ, WeChat, facebook, instant information, mobile push notification. Works in Android iOS Mobile Tablet PC iPhone 4S/5/5S/6/6S/6 Plus/6S Plus.