The wait is now over, as the Apple iPhone 4 is unleashed. This long awaited Smartphone is a real treat for tech-savvy users, providing some ground breaking technology. Due to its enviable spec list and the famous App Store, the iPhone can become anything from a phone to an MP3 player to a drum kit!

The dimensions of the iPhone 4 are certainly impressive, measuring just 115.2×58.6×9.3mm. Astonishingly, Apple has somehow packed an inconceivable amount of technology into this pocket friendly unit. The aesthetics of the handset are nothing short of a work of art, and this offers a significant proportion of the appeal of the handset. It is also surprisingly lightweight at just 137 grams.

One of the most technologically innovative features of the Apple iPhone 4 has to be the revolutionary Retina Display. Providing a pixel resolution of a whopping 640×960, up to 16M colours can be viewed in never before seen clarity and detail. Along with the accelerometer sensor, this makes it ideal for viewing videos, as the sensor means the screen content can be viewed in both portrait and landscape. The 3.5 inch capacitive touchscreen is also one of the most impressive currently available, and offers a dynamic means of navigating the iOS 4 user interface, menus and applications.

To alert to received calls and messages, as well as other prompts such as emails and social networking updates, ringing works alongside vibration. MP3 music files can be utilised as ringtones, which allows customisation of the phone. Access to a huge number of ringtones is available through the integrated iTunes store. An easy to use speakerphone allows users of the iPhone 4 to talk handsfree when out and about which is ideal for situations such as driving.

Dependent upon the model, 16GB or 32GB of internal storage is available, which will no doubt prove to be enough for the demands of most users, as even the basic model is capable of storing an entire digital music collection alongside other data. Due to the vast internal storage space, there is no requirement for additional storage such as a micro SD card slot. The integrated phonebook can store a seemingly endless number of contacts and also provides the photocall function.

Internet connections are provided via HSDPA and Wi-Fi, resulting in varying degrees of speed to be achieved based on local signal strength. GPRS as well EDGE offer the initial method of connecting to cellular networks. To connect to other compatible devices, Bluetooth and USB connections are provided as standard.

An improvement on the previous iPhone models is the digital camera. Whilst the iPhone 3G has a 2 megapixel camera, and the iPhone 3GS a 3.15 megapixel camera, the iPhone 4 offers a 5 megapixel unit. This provides much higher performance than previous incarnations of the handset, and can also shoot High Def video. A selection of features is included within the camera’s software which simplifies the task of taking impressive digital photos.

Thanks to the reputation of previous iPhone models, and advanced in mobile phone technology, Apple are once again onto a winner if recent sales figures are anything to go by.