The Apple iPhone 4 has proven to be wildly popular, and this comes as no surprise when you look at its spec list.  Featuring the highly customisable the iOS 4 alongside an Apple A4 (1GHz) processor powering a wealth of innovative apps and software, it is clear to see why this is the most successful product launch to date for the manufacturer.

Featuring the highest resolution touchscreen one any mobile phone, the iPhone 4 features a 3.5 inch LED-backlit IPS TFT capacitive touchscreen which can display 16 million colours within its whopping pixel resolution of 640x 960.  The resulting display quality of the on screen imagery has to be seen to be believed.  Not only is it great for viewing HD videos, photos and gaming, but even navigating the operating system is an awe-inspiring experience.

Ample storage of either 16 GB or 32 GB is included within the handset depending on which model is purchased.  Even the basic 16 GB version has more internal storage than most of its rivals, and essentially eliminates the need for expandable storage.  Obviously, the Photocall feature is included as standard, which can be configured with your Facebook friends, whereby their details such as profile picture and status can be displayed whenever they call.

As with just about every Smartphone, both GPRS and EDGE keep the handset connected to cellular networks, whilst Internet access is both fast and reliable thanks to both 3G coverage and Wi-Fi whenever users have access to Wireless Networks.  Thanks to a USB connection, the iPhone 4 can be connected to your PC or Mac whereby users can configure a wealth of different settings via iTunes.

The iPhone 4 sees the most advanced camera to date from the series.  Boasting 5 mega pixels, it comes with a list of included features such as Autofocus, touch focus, Geo tagging and LED flash (whilst numerous further photography applications can be downloaded from the AppStore).  Another notable feature of the camera has the ability to shoot high definition video in 720p quality.  There is also a secondary camera located on the front of the handset which allows users to take advantage of the new FaceTime app which allows video calls to take place over wireless networks with other iPhone 4 users.

Apple’s famous app store allows users to browse thousands of apps from numerous categories directly on their phone, and download them with a touch of the screen.  This feature means the sky’s the limit when it comes to customisation and everyday functionality.  The standard features are impressive however, such as voice command which allows users to carry out numerous different tasks simply by speaking into the microphone.

The Apple iPhone 4 has it all.  Whether you are looking for an amazing gaming device, mobile web browser, media player or impressive digital camera, the iPhone 4 should be at the top of your smart phone wish list.