iPhone 5s is currently in good demand. Online stock for this is already sold out in a very short time and so the shipping time for iPhone 5s is delayed to October. Looking at this situation, Apple have started the reservations for in-store pickup. So you can buy the iPhone 5s for in-store pickup via the Apple store online but it has very limited stock. Apple have started this in-store pickup option last week for iPhone 5s and iPhone 5c. With this program, you will be able to order your phone online and after that you can directly take your device from their local store. So, you will not have to wait for the phone to be delivered at your doorstep.
Unfortunately, on the very next day of in-store pickup service they stopped it for iPhone 5s. Reason for this was that the company is not able to meet the demand and supply for the phone but it remains for iPhone 5c. Apple claimed that they have sold 9 million iPhone 5s and iPhone 5c smartphones within three days after the availability of phones.