The iPhone, the device that redefined the mobile phone and has helped make Apple the most valuable company in the world, has marked its 10th anniversary.
It was on January 9 2007 that late Apple founder and chief executive Steve Jobs went on stage at the company's Macworld event to announce the tech giant was to reveal "an iPod, a phone and an internet communicator".
But rather than three separate products being revealed, one of the first truly smart phones was unveiled.
Since then, Apple has sold more than one billion iPhones around the world and has become one of the wealthiest companies ever.
However, increasing pressure from competitors and the smartphone market beginning to reach saturation point has created new pressures - sales of the iPhone dropped in 2016 for the first time in the device's history.
Since the initial announcement in 2007, Apple has introduced 11 new generations of iPhone, drastically redesigning the device on several occasions.
