The uhappy uw1 is a smart watch phone. you easily can make a call, take a picture or listen to your favorite music! The bluetooth smart watch is compatible with ios and android system. the smart watch is waterproof, includes a pedometer, near field communication and has a remote function for photo and film!- Dimensions display: 4 x 3.7 cm- dimensions package: l 13.6 x w 7.3 x d 6 cm- weight smart watch: 70 gram- weight package: 160 gram- packaging: gift boxspecifications- model: uw1- sim type: micro sim- internal storage: 128 mb- memory card: external t-flash card up to 8gb- battery capacity: 450mah- battery type: li-polymer battery- talk time: 4 hours- standby time: 92 hours- working time: 7 hours- bluetooth version: 3.0- waterproof level: ipx1- i/o interface: micro usb- software: voice call, text, music play, radio, camera, alarm, time pedometer vibration remind, anti-lost, sleep monitoring