All of Apple's apps are supported by the new 640 by 1136 pixel display, but many third-party apps haven't updated to the new specs. These apps can be quickly identified by the black letter boxing used to fill the size difference.
Apple says the iPhone 5's screen has the deepest colour saturation of all its products - side by side with its predecessor, the iPhone 5 definitely wins in terms of colour vibrancy and brightness.
The iPhone 5 is also Apple's first phone with a 16:9 aspect ratio, which means you can finally take advantage of the Retina screen to watch HD video.
When taking video or photos the camera stabilisation feature helps reduce some (but not all) of the shake that comes with using smartphone cameras.
Unfortunately a mysterious purple haze appears in any photos with bright lights towards the edges, which has ruined several photos during my review period. The iPhone 4S had a similar problem, but it was much fainter than with this new device. It's unclear whether it's a fixable software problem, or an issue with the sapphire camera lens or the camera's sensor.
The iPhone 5 sports a dual-core 1.2 Ghz processor, and a separate graphics chip. I wasn't able to pick up any performance improvements with the new A6 processor, and system animations and apps ran with the same level of smoothness as with my iPhone 4S.
Although the iPhone 5 has a larger screen and a slightly faster processor, the battery life has been significantly improved over the iPhone 4S.
A full night's charge was usually enough to get through a work day, so that's around 8 hours of 3G browsing, apps use, and using social networks.
By itself the iPhone 5 is a fantastic device with a market leading display, and a snappy processor. The small knicks on my device and the unexplained purple haze on the camera has sullied my otherwise good experience.
There's not enough here to warrant an expensive upgrade from an iPhone 4S, however for first-time iOS device buyers, or those with iPhone 3Gs then this is one I would recommend.
Dimensions: 123.8 x 58.6 x 7.6 mm
CPU: Dual-core 1.2 Ghz A6, 1 GB RAM
Screen: 640 x 1136 pixels, 4 inches LCD
Storage: 16, 32, 64 GB
Camera: 8 MP with flash
Price: $1049 16 GB, $1199 32 GB, $1349 64 GB
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