Speed is brilliant match up to to airtel .Plan of jio is very much little as contrast to other. As well it has good battery backup of 7-8 hours. one more thing u can connect 10 or more mobiles at a time .good thing is u can do Hd voice call sms during your phone over wifi its a plus point of this JIOFI.Later than using reliance jio m very much impressed by reliance 4g speed as a result I bought reliance jiofi of late in 2k in sale from amazon. best thing its very contemptible and use it like wifi for non 4g phones. I recharged it with 509rs plan and it gives incredible speed I never had that speed on wifi yet.