This jio sim is slow my mobiles. my friend who purchase a jio sim 1 months ago. but his phone is damage for the cause of jio sim. at last he through away his sim.this sim it seems to have hang the mobile and heating problem also.jio its free for three months its good.but after 3 months or during 3 months my mobile could be damage by the jio sim who will take responsiblity for my mobile.