A very good product.It is new variant of playstation .It can be buy from online or gray market.It has generally cost of 400 dollar or in india around 40000 to 45000 rupees.It can support four player at one time or some more also.It has very good processor and extended graphics.IT can also support HDR gaming so you have to be a 4k television(TV) for using sony playstation 4.Maybe it can be run on normal TVs but quality is affected.It was changes its remorts colour and some more features of it.sony was released its two variant one ps4 slim and another ps4 pro but both of them are released in india some late.
Now talk about its some more features.It can support three USB, extended hardware, its box has lighting down side.believe me its has very good graphics when you play it, you really feel like you are in the game.so overall result/conclusion is that buy the ps4 and enjoy it.