Jio company announced its a 4g speed it not even speed of 2g some of my 4 friends using jio sim they all told me its better to use any 2g sim better than this jio sim sometimes even normal whats up messages also did sending or receiving this is only example jio customers facing lot of problems even through phone calls also so many friends of mine they calling to me from their jio sim I dont explain how bad poor calling clarity it is, myself I dont like jio its better to improve their network as well as service