Reliance jio company is top most company in IndiaI was used the jio sim last twoIt provide a large amount of data and calling facility.Reliance jio sim is 4G networkSome people says jio’s network was low some area but I am says that the 4G network is very fastFirst of all reliance jio user free 6month data and call ( unlimited) till 31 March 2017Then jio’s some charges apply and bringJio summer surprise offer this offer was only rupees 303 and get unlimited callingAnd 84GB data 84daysThen jio’s bring jio dhan dhana dhan offer this offer take 309 recharge and get same plan for Jio summer surprise offerThen jio’s launch a india’s big and free phone who’s name jio phoneI used the jio sim and I am fully impressed the service about jio 4GWho take a free apps like a jiotv, jiomusic, jio4gvoice etc.I think this jio 4G facility is very good , some area’s network problem but my area network is very fast and 4G work is very fast like a 13mb/secJio 4G phone launch a jiofi at only on 1999/-I used this network and enjoying the 4G services and I should some month later jio 4G network is available all over IndiaThis reliance jio feature is amazing and useful for every indian person at lowest price