I am an old user of iPhone and everybody who used iPhone before knows that no phone can match its usability. I would like to tell here that why iPhone5s is better than any other phone in the market in 21K.
Design:-
First of all its design is so premium and perfect for single hand use. Screen is adequate in size you don’t feel it small when you actually use it day to day .I don’t use bumpers for my phones and I did not use one with this and this is still alive, so it is a sturdy phone as well. Phone is waterproof as well up to some extent(from splashes only). Earphone jack, speaker location and sound quality, all hardware switch are the same like previous generation iPhones and of very good quality. It has very good finger print sensor as well which actually works every time you put your finger on it. Weight is light(112g) and you can keep it in your pocket comfortably.
Camera:-
8 MP camera may look small on paper in comparison with todays sensors but get its job done efficiently, it is the best camera phone in this price range which is very fast, responsive and takes high quality pictures.
Screen & usability: - Retina Display is perfect for indoors and outdoors use like always and IOS 9 is perfect, IOS 10 with new features is coming.
I have been using this phone for last 1.5 years and it is working flawlessly and always uses iPhone as my primary phone.
Pros:- every thing
Cones: - Nothing