I was bye it science six month back but I was not able to use it because there is no network in my area. as for4g network it is slower than other. customer service is not good. when I call from my jio sim many time I get call drop. sot I think the performance is poor. there are many places in rural area sill now no network service. like hingalganj when I go there my phone have no network. and one of the big reason is it can not support on my 3g mobile. if want to use jio sim you have to buy a 4g mobile. and the phone should be volte enable.