I bought jio fi cost 999 in diwali and my friends say me the 4g hotpot gave you 4g net but it work 3g in my phone and its batery is too short and it charge to long so I gave to my brother this jio fi he says it is not good .In jio sim after use 1gb the vedio has open but buffering. In the jio fi after use 1gb the vedio not open