The most trending operator in the india.Everyone like jio operator because it gives you free sim in samsung lyf mobile and it also gives you free unlimited net for 3 months and unlimited calling for 3 months.The 4G network is working awesome and great.I think you have to purchase the jio sim because its awesome and great.BUt I think is that there customer care service is not better.JIO operator gives you full network an there net is mindblowing.