I am thinking about leaving my iphone 6 for galaxy note 5.

[Shakil Khan ii]

I liked the display , s-pen , camera etc. But i am worried about the slowing down of android devices ( or may be only samsung specificly ) after some months or may be a year of uses... and will i get as smooth app/game/UI performance as iOS ? please help me with suggestions as i am not sure what to do >>> Thanks