The Apple iPhone 5s may not look especially different from 2012's iPhone 5 but it has an improved camera, faster processor and a longer lasting battery. Like the iPhone 5 it has a 4-inch screen and a premium metal finish, though this incarnation is available in new colour options - Space Grey (replacing the black version) and Gold.
The iPhone 5s is available with 16GB, 32GB or 64GB of internal memory. Prices are high - the cheapest 16GB version costs £549 from Apple or from around £38 a month on a contract (with a free phone).
