Apple first unveiled the iPhone back in 2007 and at the time it was a state-of-the-art device that managed to completely shake up the mobile industry. Six years later high-flying manufacturers such as Nokia and BlackBerry have been brought to their knees by the change that Apple's flagship range has generated, although plenty of evolution has also occurred to help the Californian firm keep up with emerging competitors.
Here is an overview of the iPhone's short but illustrious history so far, taking in the key models along the way.
The first-generation iPhone had a 3.5 inch touchscreen display, a Samsung processor underclocked to 412MHz and between 4GB and 16GB of built-in storage space. Problematically, it didn't offer 3G connectivity, instead sticking with 2G, which limited its mobile internet speeds. However, the iOS operating system was a revelation and truly popularised touchscreen interactivity.
As well as being compatible with 3G networks, the next iPhone added GPS to the mix, allowing users to pinpoint their positions and use navigation and location-based apps for a wide variety of purposes. It stuck with the same processor and basic two-megapixel camera as the original but added a white version to the standard black model.
Storage for the 3GS was expanded to include a 32GB model along with 8GB and 16GB versions. A new 600MHz processor joined the fray, along with upgraded graphics and 256MB of RAM rather than 128MB. A digital compass was added to boost the navigation capabilities and the camera sensor could now capture three-megapixel still shots and VGA video clips.
The biggest update to the iPhone range since the original model came in 2010 with the iPhone 4. The rounded chassis of the first three versions was ditched in favour of a thinner body made from metal and glass, which rendered older iPhone cases obsolete. The iPhone 4 also introduced the Retina Display, which was still a 3.5 inch panel but offered a much higher pixel count and density for crisper, clearer graphics. A five-megapixel camera with 720p HD video recording improved the photographic potential of this model, with a front-facing secondary camera and the FaceTime app letting users make video calls for the first time.
A faster dual-core processor and up to 64GB of storage improved things on a technical level for the iPhone 4S, although its physical similarity to the iPhone 4 meant that customised phone cases were still largely compatible across the generation gap. Voice-control capabilities were added courtesy of Siri on this model, along with an eight-megapixel camera.
A dual-core 1.3GHz processor designed by Apple gave the iPhone 5 more power to work with, along with twice the RAM of its closest ancestor. A thinner design and a new four-inch Retina Display also helped things along, marking the first screen-size increase for this range.
In 2013 we have got two iPhones launching side by side for the first time. The iPhone 5S is the most powerful model yet, with a 64-bit processor and superfast graphics chip on board. The iPhone 5C is a more affordable option, equivalent to the iPhone 5 in power and available in many different colours. Whatever option you decide on, we have numerous apple cases at Mr Nutcase to choose from if you feel like treating yourself!
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