I bought the jiofi device about a week ago for a PRICE of 999Rs and I am quite happy with it.
the data card is very FUTURISTIC as far as the looks are concerned and comes with a 32 GB support card slot.
No memory card is provided inside the box. other things in the box are charger battery warranty card and user manual.
it comes with a one year warranty.
the SIM support is NANO SIM and the device is quite aesthetically pleasing to look at. the connection is good most of the time and the speeds are greater than when they were on my phone
the support of jio is limited to one year after purchase but the built quality is so good I doubt you will need it.