The anticipation is finally over, and the Apple iPhone 4 has been released. This eagerly anticipated handset is a real treat for tech-savvy users, boasting some revolutionary technology. Thanks to its impressive spec list and the famous App Store, the iPhone can become anything from a phone to an MP3 player to a spirit level!

The size of the handset is certainly impressive, measuring just 115.2×58.6×9.3mm. Somehow, Apple has managed to pack a commendable amount of technology into this compact unit. The appearance of the handset is nothing short of stunning, and this provides a large amount of the appeal of the handset. It is also pocket friendly, weighing in at just 137 grams.

One of the most advance features of the Apple iPhone 4 has to be the revolutionary Retina Display. Boasting a pixel resolution of a whopping 640×960, up to 16M colours can be displayed in unparalleled clarity and detail. Along with the accelerometer sensor, this makes it perfect for viewing photos and video files, as the sensor allows the on screen content to be viewed in both portrait and landscape forms. The 3.5 inch TFT capacitive touchscreen is also one of the most advanced on the market, and offers a seamless method of intuitively navigating the iOS 4 user interface. Other features of the screen include multi-touch input method, three-axis gyro sensor and a proximity sensor for auto turn-off.

In order to alert users to incoming calls and text messages, as well as other alerts such as emails and Facebook updates, ringing works in conjunction with vibration. MP3 music file scan be assigned as ringtones, which allows users to customise the phone and they can listen to the song of their choice any time the phone rings. Access to a huge number of ringtones is available through the built in iTunes store. A simple to use speakerphone system allows users to chat handsfree on the move which is ideal for situations such as driving. A 3.5mm audio jack is also provided which allows the use of handsfree headsets as well as earphones for listening to music via the built in iPod function.

Dependent upon the model purchased, either 16GB or 32GB of internal storage is available, which is sure to prove adequate for the needs of most users, as even the basic 16GB is capable of storing a large digital music collection along with other data. Due to the generous internal storage, there is no need for additional storage features such as a micro SD card slot. The internal phonebook can support an unlimited number of contacts and includes the photocall feature.

Connections to the internet are provided courtesy of HSDPA and Wi-Fi, allowing various speeds to be achieved dependent upon location. GPRS and EDGE offer the primary method of connecting to cellular networks. In order to connect to other compatible hardware devices, both Bluetooth and USB connections are included.

An improvement on previous iPhone models is the camera. While the 3G has a 2 megapixel camera, and the 3GS a 3.15 megapixel offering, the iPhone 4 boasts 5 megapixels. This offers much higher performance than previous models, and can also shoot HD video footage. A number of features are included in the camera’s software which simplifies the task of taking great quality images.

Over 1.7 million units of the Apple iPhone 4 were sold in the first 3 days since it went on sale. This makes it the most successful launch for an Apple product to date.

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