Redmi note 3 is best phone in budget mobile range.
Mi note 3 have 16 mp and 5 mp camera mi note 3 camera results is not excellent but average.
Mi note 3 run miui or android lollypop but marshmellow upgrate is very soon.mi note 3 also have finger print sensor and ir sensor.ir sensor os work as a remot controlling.ex-tv romote, a.c remote etc.
Its display performence is very good and playing hard game its no heating problem. I must say mi note 3 camera is not good than moto g4 plus.