Display Exterior screen size: 1.54"IPS Contrast ratio: 16.7M Resolution: 240*240 Capacitive screen size:1.54" Technology: point+gesture GPS: supported, preciseness wihthin 10m Bluetooth: Bluetooth 3.0+EDR(Bluetooth earphone Hi-Fi quality transmission and receiving) WIFI: IEEE 802.11b/g G-SENSOR: Supported TF card slot: Yes, Max 32G Compass: Supported Waterproof: living standard, can wear watch to wash hands, dishes, run in rain and sweat. Can install apps from Android app stores. Color: black, khaki,Silver. Size(LxWxH):45*42.8*13.8mm Battery capacity:600mAh lithium battery Weight: 86g