Iam Samsung user I’m using now mobile is Samsung j1ace before iam used 3mobiles Samsung j1 Samsung s duos & Samsung guru music 2 Samsung music 2 better than s duos j1 is good mobile now iam used Samsung Galaxy j1ace ( j111f ) 4g now good mobile s duos every time hang was waste mobile but sound quality good Samsung s duos not battery back up not long time that mobile main problem is hanging hanging hanging iam more times irritating that’s mobile but Samsung is good brand I love Samsung mobile next iam try to buy s8