I phone 5s is not a bad phone .but I phone 6s is much then better.it runs itune os.
Iphone 5s 's features are :
Apple os version 5.1
Camera Hd and frount camera is also Hd
Screen size 5.0 inch
It is also available in 32 Gb and 16 Gb
Itune in-bulite also
It is good phone but it 's prise is very high. It 's look very beautiful and slim & Smart.