I am buy mobile oppo joy last three month.
Firstt month mobile can operate very very good as welll as fast.but second month mobile was operate very sloww.
Because ram is very very low. Many many problems in mobile like software problemss , dislplay problems , battery problems and lots of problem in this mobileee.other oppo mobile are best but that oppo joy plus r1011 are not good. Oppo joy are lots of problematic mobile.