Hardly one year after the release of the first iPhone, which took place before the App Store, Apple released the "phone you have all been waiting for." It had 3G connectivity and a base storage of 8GB, small compared to its predecessor, though it was originally released with 16 GB and 32 GB versions instead. It was 12.3mm thick, weighed 133 grams, had a 3.5" display screen and a 2MP camera, along with a 128MB memory. The differences between the iPhone 3 and the original iPhone were slight, except for the App Store and its 3G connectivity. Even so, it sold a million units in the first weekend of its release. It was really an incredible feat of marketing and technology and paved the way for the next phone, which again promised to be better than the last phone.
Less than 11 months after the ground-breaking iPhone3, Apple, riding the success of the previous version, released the iPhone 3G(S) on June 19, 2009. At the time it was deemed the "most powerful" phone ever made. It also sold a million units in its first week. Apple realized that with the recent introduction of its App Store, 16 GB wasn't going to cut it, so they released this version with 32 GB max, and a 256MB memory, which was double as compared to the 128MB of the iPhone and the iPhone 3G.