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The evolution of iPhone: from 2007 to today

iPhone 4

iPhone 4 introduced a whole new design concept by Apple, with Steve Jobs going so far as to claim it was the thinnest smartphone around, at the time.

Scrapping the slightly dated, protuberant body that the previous three generations possessed, its iPhone 4 model was much trimmer, with glass panel faces and a premium metal frame.

It seemed as though iPhone 4 was all about aesthetics. It pioneered Apple’s ‘Retina’ display, which was marketed as having the maximum amount of detail that the human eye can distinguish.

Its pixel arrangement was far denser than ever before, with a resolution of 960 x 480. Compare this to iPhone 3GS, which had a resolution of 480 x 320 and the same sized screen, and it becomes immediately visible just how revolutionary this advancement in technology was.

iPhone 4 was the first to house a front-facing camera and with it, this smartphone introduced FaceTime – video calls with friends and family over WiFi (this service can now be used over your data connection too).

Most Advanced Feature

iPhone 4’s pièce de résistance was most certainly its ‘Retina’ display. At the time, Apple asserted users simply would not be able to notice any pixels from the typical distance you hold your phone at (considered to be around 12 inches from the eye).

iPhone 4

Next: iPhone 4S

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