Relience jio
Network coverage: the jio network coverage is good then other company like airtel, Vodafone, bsnl, and many other company taking money to recharge and use the net pack. Jio is free internet. Jio giving free data, SMS pack, voice call and many more. Jio is good and better then other sim. Jio gives you mobile to use jio sim 4g. Jio give good service then other.
Costomer service: the is good if jio mobile. Speed of jio also good.
Charge and billing:no charges into jio and no billing