India 4G network.Too good.Nice speed Data.Jio lounch free offer till August 2016 to 2017 march unlimited Data, sms, Data.4GB per day but when limite is Crosed then speed is upto 128kbps.Daily 4GB is upto 4mbps I use.Some time problem it but not every time.I like 4g speed.Daily 100mint free call.Sms unlimite.All have limite 100 sms in a day so it rule use jio also