I have been using Jio phone for about 6 months and it has been a really true smartphone to me.It is a exclusive keypad bar phone for jio users at the price of 1500 with lots of features which a smartphone should have.Talking about the built quality, it has a plastic body where we have a single camera and a speaker at the back and a 2.4 inch 360p display and a typical keypad at the front.
Then there is operating system from kai ( kaiOS) , which I feel sometimes gets some lags but otherwise it is superb.We even have a selfie camera which is not so clear but yes it is a big thumbs up for this price catogory.It has even video call support through a app called jiochat.
All over this is a compact beast
