Provides data in very very cheaper rate. always provides best offer-i am enjoying 3gb data per day at just 399 for 84 days.without offer it is giving 1.5 gb data per day for 84 days at 399.other data provider like idea and airtel is giving 1.4 gb data for the same rate.1-4 mbps speed gives in rural areas whereas others brands 4g network is not available there.in urban areas it gives more faster than the rural. you can watch free live tv, read jio newspaper, listen music.it may take some time to picked up your call by the customer care.you can recharge your jio online.in most of the states jio has a better 4g signal strength.if you want to buy a sim check the speed and signal strength.if jio’s network is available there then I suggest to buy jio sim.its add on pack is also cheaper, it is giving 1 gb data for just 21 rupees.