Io sim card is a good momrnt of pohne user bt .jio is avilave with benifit only far 4g set user .because jio is not supported 3g set .and jio has mani falt or disadvantage like .jio has no plan of 50 gb and a see many time my jio sim not working in train and durin in jurny .and jio give a plane of night but its timing is not good jio giv up timing 2 am to 5 am and other nrtwork give its timing 11pm to 7 am and you thik a person will operate net in late night ofter 2 am and who sleen when.