Relince jio is a femous network but very bad.Now I am using Airtel the firstest network & data speed over jio network.The unused data between 1 gb is added for next days in airtel network but not in jio.The connection of every time is changes there the bettery life of phone is redused. The jio network is not available everywhere.At first jio speed is very good but now the speed & calling is very bad. The charges in jio netwrork is over airtel network. For buying new jio sim jio prime charge is extra for other network. Isuggest that jio sim buying is fool work.