Apple currently markets three distinct iPod models bearing the iPod name. Some models come with different capacities (a higher capacity allows the storage of more music) or with different designs. The model range as of April 25, 2006 includes the iPod (30 GB and 60 GB), iPod nano (1 GB, 2 GB, and 4 GB) and iPod shuffle (512 MB and 1 GB).

The iPod Mini (4 GB and 6 GB and in various colors) are now discontinued, having been replaced by the iPod nano. The iPod U2 Special Edition was also discontinued. The Harry Potter 20 GB Collector's 4th generation iPod was replaced by the Harry Potter 30 GB Collector's iPod, which is simply a 5th generation iPod with a Harry Potter engraving and the Harry Potter audiobooks pre-loaded.

1st Generation iPod

iPod (scroll wheel) models are referred to as first generation iPod models.

2nd Generation iPod

The iPod Mini is a second generation iPod model distinguished from the original iPod (touch wheel).

3rd Generation iPod

The iPod models with dock connectors are referred to as 3rd generation iPod models.

4th Generation iPod

The 4th generation iPod integrated the four buttons into the click wheel.

5th Generation iPod
The 5th generation iPod comes in two colors, white and black, and it features the World Clock, Stopwatch, and Screen Lock applications.