Released on June 29, 2007, the original Apple iPhone, had a 3.5" display screen, was 11.6mm thick, and had a staggering 16GB of storage! Compared to phone memory today that doesn't seem like much, but it was enormous at the time. It had a 128MB memory, which was fairly impressive, and weighed just 135 grams.
It was considered ahead of its time, and as Apple, who had now "reimagined the phone," were bathing in the glow of the iPhone's success. Apple immediately began plans for a new iPhone, and aimed to beat its predecessor in every category. This was not an easy task given the available technology at the time.