iPod® Generations Chart
Apple first introduced the iPod back in 2001, and since then this single versatile device has grown into an entire family of digital music and video players. The original iPod was the "first generation" model. Subsequent versions have been referred to as "second generation" (2G), "third generation" (3G), and so on.
Once memory capacity started being measured in gigabytes — abbreviated "GB" — determining which iPod you had could be confusing. For example, you might have a 4G 20GB iPod, or a 2G 4GB iPod shuffle.
So we've created this handy chart to help you identify exactly which iPod you have. Note that not every iteration was considered a new generation. The fourth generation iPod, for example, initially had a black and white screen, then was re-released with a color screen. Both versions are considered 4G iPods. We've also noted some of the major changes for each model in the chart to further help you with identification.