I bought this phone on april 2014 from the beginning I got a worst experience from galaxy s duos 2.while using the phone hanging is the main problem I experienced ram upto 717mb is not enough for using apps.this phone charges more than its performance I spent rs.8897 for this mobile totally waste of money.internal memory upto 4gb is not enough for storage .battery backup is major problem.i suggest u friends please dont buy this mobile my humble request.my display got damaged due to poor strength of the glass.simply it is a waste of cost.please samsung company try to avoid releasing this type of mobiles