I have bought a reliance jioFi for the last month. This is good product.I am enjoying 4g internet and hd voice calling in my 3g phone.you have to connect your 3g smartphone to jioFi hotspot than you easily enjoy free internet service.this product is very comfortable, the jioFi is very slim and looks attractive and can be taken to any where in his pocket easily.Battery condition is so good which can hold up to 6 to 7 hours.I am satisfied this product to using it.