Buy Redmi Note 3 because its better than j5, but BUY REDMI NOTE 3 PRO version because it has global rom, not the chinese one. You have google apps preinstalled and pro version will most likely get android 6.0 with miui 8 which is coming on June 17th.
And MTK version wont( not sure, xiaomi didn’t say anything about that) . Or wait and see will It get android 6.0 but I think it won’t ever get global rom because it is not realised globally.
And pro version is more powerful than MTK( 16mpix>13mpix, snapdragon soc>stupid MTK soc) . And buy 3GB ram variant because ram management is poor, hope they’ll fix it in future! Good luck!