ORIGINAL IPHONE VERY DIFFERENT TO TODAY:
* No App Store - The App Store, home to every game and service a user could need did not appear until 2008, so adding and customising features to the phone was not an option. In fact, the original iPhone offered just 15 pre-installed apps, including the calculator, stocks, maps and weather apps.
* Touchscreen - Until the iPhone, physical keyboards had been present on all of the biggest sellers in the mobile phone market. The iPhone was the first to successfully make the switch to multi-touch screens and virtual keyboards, eliminating the stylus at the same time, which had been popular on other touchscreen and PDA devices up to this point.
* A single camera - Back in 2007 selfies were yet to take off, but even if they had, taking one on an original iPhone would have proved difficult as the iPhone did not have a front-facing camera. Even the rear camera was only two megapixels, far less than most selfie cameras today.
* Social media - With no social media apps available to use, updating your Facebook or Twitter would involve using the web browser - which at this stage was still known only as Web and not Safari as it is today.
* iPod - In a nod to its previous great product success, the app we now know as Music was called iPod on the first iPhone. Indeed, Steve Jobs even referred to the original iPhone as a phone combined with an iPod when announcing the device, rather than a smartphone.
