Happy decade! Watch a speed test of every iPhone ever made to toast its anniversary

There are plenty of theories on the exact reasoning behind Steve Jobs's decision to task Apple with creating the OG iPhone, but most boil down to the fact that he's been on record saying how he longs for the times when people can carry an user-friendly computer in their pocket to keep them connected at all times.

The keyword here is user friendliness, that is why the iPhone franchise caused such a stir after just a few years of existence, and has made Apple the richest company in the world. There were plenty of forward-looking features that set the iPhone apart when it was introduced on this day ten years ago - a large for its time display with capacitive touch tech and inertial scrolling that made navigating the new finger-friendly iOS and above all - its "first fully usable browser on a phone" - a breeze, at least compared to most of what was available.

It's hard to believe that today is the iPhone's 10th anniversary, but it marks exactly ten years after Steve Jobs took the stage at Macworld 2007, and quoted Alan Kay, the man behind the windowed GUI, with his "People who are really serious about software should make their own hardware" slogan. This is giving us a hint how the iPhone idea came to fruition, but how much has the device changed over its decade in existence?

Well, one only need to look at the video above that runs various speed, camera and sound tests on the iPhone 7 Plus vs 7 vs SE vs 6S Plus vs 6S vs 6 Plus vs 6 vs 5S vs 5C vs 5 vs 4S vs 4 vs 3Gs vs 3G vs 2G, to find out. That's fifteen iPhone in total announced so far, and some of the speed test results may take you by surprise.