Core prime itz jst an amzing cell phone guyzz.i really love it coz yeah hung nhi ho hai v smart feturez in core pime bst samsung nd guyz uh knw wht bst fetur of the cell I have no memoery card nd I fell full 8gb memory n d itz doesnt hung.nd camer qulity is nt so bad itz picter qulity is like 2mxplx frnt nd 5 bck bt itz itz cool in rate of 9500 pluz sumsunge brnd.nd nd working speed is alos good 1gb ram.nd look of phone is alos good nd hd screen pluz whigt is abt 130 g.nd dulesime systm is normly is ll cell nd Android OS, v4.4.4 kitKat nd we can upgrde to lolipop nd I jst have prbm wid baty crng itz takd Li-Ion 2000 mAh batteryStand-byTalk timeUp to 13 h( 3G) MusicplayUp to 60 h 3.15 min ti charge bt widout useing wifi nd data bty full day cahlti haii bt overll cell is realy gud yrr.i jat lovr itz my cell guyz if uh wht to buyz jst garbe it yrr I give uh surity tht uh ll loved itz. Uh guyz tum logo koo jan kar aacha lage ga sumsunge ka yeh cell hung nhu hita yehh bst baat hai intenal is good buss sound is thida sa baaf