I phone 5s became too old in these days( 2017) has I am also a very big fan of iPhone but it came to 5s I recommend you to take a look at IPhone SE in 2017 as I think that 5s will not survive in this heavy competition of big and many features devices. Were SE can survive much better than 5s. So it is best to get a iPhone SE than getting a iPhone 5s model as it contains very few features than 5s.