I get a jio sim card from reliance digital center using generating the qr cod. the card working well. when I try to download move I shocked the speed is very good because I already use reliance 3g sim the speed is no good. but this is awesome I like the speed of the jio sim network. the sim start to take 7-8 days. some time up coming a message you are cross your data limit this is the problem. but this message not pop out. I am very happy to use jio sim. the features of the sim 3 month free data and calling and messaging. I really loved this services. but some time jio customer care not taking call for inquiring. Thanks.