The 5G iPod was revised on 2006.09.21 with a brighter display, nearly twice as long video playback, search, and redesigned earbuds. It was the first model an 80 GB option. Commonly known as the 5.5G iPod, this model looks identical to the first revision.
The 5G iPod was updated with a brighter screen, improved video playback time, and a larger hard drive on 2006.09.12. The U2 Special Edition was updated at the same time, also receiving a $50 price reduction.