I used all the series of iphone. And I realize difference between other smartphone and iphone there are so many differnces like the quality iphone toch screen. iphone introduce so many unique features like finger print scanner, metal body, best picture quality, opreating system. Inbuild find my option where you can find your phone if stolen or forget anywhere. iphone 5s is the best phone in all of iphones because iphone 5s size and cost is best.
I am also using iphone 5s and I must say that I never saw before those kind of features in any smartphone.