The long wait is officially over, as the eagerly anticipated Apple iPhone 4 is unveiled for sale to the public. This highly anticipated Smartphone is a real treat for tech-savvy users, offering some trend setting technology. Due to its unrivalled list of specifications and the famous App Store, the iPhone can become anything from a phone to an MP3 player to a sat nav unit!

The proportions of the iPhone 4 are impressively compact, measuring 115.2×58.6×9.3mm. Amazingly, Apple has somehow crammed a mind boggling amount of technology into this attractive unit. The aesthetic appearance of the handset is modern and sleek, and provides a great deal of the appeal of the unit. It is also very lightweight, weighing in at 137 g.

One of the most innovative developments of the Apple iPhone 4 is the stunning Retina Display. Utilising a whopping pixels resolution of 640×960, up to 16 million colours can be displayed in stunning clarity. Alongside the built in accelerometer, this makes it perfect for watching videos files, as the accelerometer allows the on screen content to be viewed in portrait and landscape forms. The TFT capacitive touchscreen (measuring 3.5 inches) is also one of the most impressive currently available on today’s mobile phone market, and provides a dynamic means of navigating the iOS 4 user interface, menus and applications. Received calls and messages, as well as other prompts such as emails and social networking updates, are indicated by ringing alongside vibration. MP3 music tracks may be set as ring tones. Access to a vast selection of ring tones is available courtesy the integrated iTunes store. A simple to operate speakerphone system provides users of the iPhone 4 with the means to talk handsfree when out and about.

Depending on the model, 16GB or 32GB of storage is available internally, which is bound to be enough for the everyday requirements of most iPhone users, as even the basic 16GB model is capable of storing a whole music collection alongside other files. Thanks to the vast internal storage space, there is no reason for additional storage devices such as a micro SD card slot. The phonebook can store an endless amount of contacts and also offers the photocall function which allows a photo to be assigned to each and every contact.

Fast internet access is achieved via HSDPA and Wi-Fi, resulting in varying degrees of speed to be achieved based on signal strength and proximity to W-Fi facilities. GPRS & EDGE offer the primary means of connecting to cellular networks. Connections to other compatible devices, Bluetooth and USB connections are provided as standard.

One of the improvements on the iPhone 4 predecessors is the digital camera. Whilst the iPhone 3G offers a 2 MP digital camera, and the iPhone 3GS a 3.15 MP digital camera, the iPhone 4 offers a 5 MP unit. This results in improved performance from previous versions of the handset, and can also shoot HD video. A raft of image enhancing features is included as part of the camera’s software package which simplifies the task of taking great snapshots.

Already selling well, Apple claim the launch of the iPhone 4 is their most successful launch ever. It is easy to see why it has already proved to be a hit.