Flylinktech Smart Watch Phone WiFi 1.54-Inch Touch Screen GPS Waterproof Smartwatch with 5.0 MP Camera for Andriod SmartPhones (K105) LG HD display and sapphire touch screenwater resistant with high sensitivity and high definition make the watch more resistant. Dual Core Android 4.4 operation system, more advanced and smooth.And it supports SIM card, you can make a phone call or pick up a phone call It supports Wifi and 3G WCDMA(2100MHz), you can watch video, play games, Facebook and Twitter in the watch. 5.0 MP camera make it possible to take clear photos, GPS help you to locate and determine the correct the direction; Pedometer tracks your steps,distance and calories burned. 600 mAh battery, massive capacity and durable. It can last a long time with the standy time of 108 hours