Hello, I am telling about my airtel 4g network. According to me Airtel 4g is the fastest network in compare to all other 4 networks. I can download movie, songs, videos etc in a very short time. Because in a airtel 4g network.you can download any thing wihout any network stoppage.it is very good and least expensive. There no disconnectivity or any type of problem in this network at any time even at any place. So I think there is no any substitute of this network. you would also get some attractive offers in this network time to time