by harder edges, and with plastic covers replaced by scratch-resistant glass panels. Perhaps the most striking new feature of the Apple iPhone 4, though, is its new dimensions. Not only is the Apple iPhone 4 thinner than any previous model of iPhone, it is also one of the thinnest smartphones that has ever been made. Part of the reason for this is the external antenna, which forms a steel band around the body of the Apple iPhone 4, allowing the phone, as a whole, to be made more compact and more elegant.

Just as the antenna on the Apple iPhone 4 has been updated and turned into an innovative feature, so has the screen. The iPhone 4 uses Apple's new 'Retina Display', and the key feature of this screen is that the resolution it has (640 x 960 pixels) is higher than the human eye can see at distance. As such, the screen on the Apple iPhone 4 has zero pixellation, with text and images onscreen never looking less than perfectly smooth.

In addition to brand new hardware, the Apple iPhone 4 also features a completely new incarnation of Apple's mobile operating system, now dubbed iOS. This new version of iOS features, for the first time, multitasking, and the ability to add folders to the homescreen, allowing you to organise your App shortcuts. The new version of iOS found within the Apple iPhone 4 also allows the user to make and receive video calls using the integrated FaceTime software (note: a WiFi connection is needed to use FaceTime).

In conclusion, the Apple iPhone 4 takes everything that made the previous versions of the iPhone so successful, and improves upon them. With brand new hardware, a brand new version of the operating system, and even a brand new industrial design, the Apple iPhone 4 has evolved to become one of the most desirable phones on the market, a fact which has enabled Apple to sell over three million handsets, already.

As Apple themselves say, the iPhone 4 is simply the best iPhone yet!