4G Smart Watch Cheap Water Resistance IP67 Smart Phone Watch with GPD Devices for Kids and Adults Great GiftsBrand Name: wonlex System: None Multiple Dials: Yes ROM: 4GB Function: Passometer Function: World Time Function: Sleep Tracker Function: Dial Call Function: Push Message Function: Remote Control Function: 24 hour instruction Function: Fitness Tracker Function: Answer Call Function: Message Reminder Function: Call Reminder Function: GPS Tracker Battery Capacity: >450mAh Mechanism: No GPS: Yes Type: On Wrist Network Mode: 4G SIM Card Available: Yes Rear