So here comes samsung galaxy J7 2016 variant a much much better phone by samsung in this price segment till dates best model to buy .
As providing key feature-
Battery- 3300mah
Android version - mashmellow
camera- 13m & 5m with 1.9f lens
Ram- 2GB
So if any one want to buy a device of a named brand then in this price segment of?15990 there is no other great option for the buyers