The Apple iPhone 5s still has a dual-core processor, its camera only comes with 8 megapixels and is borrows the same design from the Apple iPhone 5. But it does have one feature which its competitors don't have - A fingerprint scanner. While it definitely isn't an earth shattering feature that will make you drop your current iPhone and rush to upgrade, it is still a convenience that makes the iPhone cool.Its specs include a 4 inch Retina touch display, up to 32GB of internal storage, an updated 8 megapixel BSI camera with dual-LED flash and f2.2 aperture and will be powered by an Apple A7 processor with 1GB of RAM. The iPhone 5S will feature an additional M7 chip which will run alongside the A7 and handle sensors on your device.
Also check out the following two part video review of the iPhone 5s from PhoneDog:
Fortunately unlike the iPhone 5c Apple has used the premium materials which make the iPhone worth spending your $200 with a contract. If you want to get the device contract free, it can be yours for $650, which in our minds is still better than the $550 asking price of the iPhone 5c.
Should you upgrade to the iPhone 5s? You should definitely consider it if you have an iPhone 4s or lower. But if you have a premium Android device like the Samsung Galaxy S4, HTC One, Sony Xperia Z1 or LG G2 you are probably better off with the device you have.
source - PhoneArena | The Verge | Engadget