Jio has 4g as the offer is launched about unlimited calls and unlimited Data it is true its unlimited but we lcan call only when the internet is on as per as standing instruction the user should only 4gb data in one day if we browse mote then that the speed decreses from 4g to 2g if we want to call somebody then we have to install my jio app on our phone tje networ is not all four towers but if there is 4g network then we can browse in at the fastest dpeed