If you want to buy a phone for business use and for more security than iphone 5s is good for you but for others dont buy because of these reasons first you cant transfer files from your pc to iphone directly you need a software called itunes.
Second you can not use bluetooth for sending files from iphone to a android phone.Third limited storage no expandable storage option available.Fourth battery backup is very less.So, if you want to buy a iphone 5s than you need to face these problems and one more thing this is not a cheap phone 22k phone.