I can use it mobile.Samsung z2 device is not good.because It is not fully android mobile.And large effect only tezen apps installed other apps are not installed.screen size is small 100.8 mm.this mobile is hanged. this mobile processing is very slow.and bettery backup only 4:50 hours.this mobile only one good feature because is mobile 4G.mobile looking style is bad.WiFi wps button is not in mobile.