Jio was come in market before 6/7 month and he was rocking in the market he was fastest network I seen never I bouth reliance jio sim before one month I can useing real four g data service and true hd voice calling that is fassest network before I using other my speed was 30/40 kb per second and today jio gave me 1 mb per second really his coverage network was good and customer care services great