LC Prime&reg; Uwatch U18 Bluetooth Wrist Smart Watch For Android Smart Phone Sleep Monitor silicone stainless steel silver 1 GESTURE RECOGNITION: The first dual-mode watch, Android system, Bluetooth 4.0. Simple actions, humanized design, with gesture recognition function, You only need to raise and turn your arm when wearing, watch screen will automatically light up SMART WIFI: Smartwatch itself supports Wi-Fi wireless internet connection, can install all kinds of APK example for QQ, Wechat, MicroBlog, Whatsapp. Any time, any place, chat with friends and share the happy time GPS NAVIGATOR EMBEDDED; 1.6 inch full view IPS high definition screen NANO WATERPROOF: daily life waterproof such water splash, sweat, rain (Cannot be soaked in water in bath or swim) COMPATIBLE WITH: Android phone including Samsung Galaxy Note 5/4/3/2, S6/S6, Edge/S5/S4/S3/S2, LG G2/G3/G4, HTC ONE M7/M8/M9, Sony Xperia Z4/Z3/Z2, OPPO, VIVO, Xiaomi, Huawei, Other Android Smartphones