Iphone 5s very amazing mobile am also use its very slim and smart phone easly handle 4 inch touch screen price comfortable 1.3 GHz duol core 1gb ram and 16 and 32 gb rom 8 megapixle back camrea and front camre 1.2 megapixel but good result other mobile run on ios 7 and upgrade 10.1.1 and is powered 1570 mah non removeable battrey this phone single sim tha accept nano sim suppurted 3g and 4g sensore on the phone include compass magnetometer proximity sensor accelerometer plz use the iphone 5s thanks