Hey frnds I m going to tell about oppo a57 .i m using thing mobile till last 4 months, frnd this is best in selfie but some feature are missing like u can’t move your apps to sd card with 3gb Ram and 32 gb Rom and other Front camera 16 mp and rear 13mp marshmallow version.
Battery life is also average as2900 mah .and one of the worst problem is heating .selfie lover, you can go for it.its not a bad mobile.