Although there’s been a stark change in the original iPod compared to the current variants (Touch, Nano, and Shuffle), you can still notice the core design to this day. It was always going to be the case that new designs and features were to hit the shelves pretty rapidly, since the market reacted extremely well to the original being launched, and within a year the second generation iPod was with us, with the greatest change being the removal of the mechanical scroll wheel and introducing the touch function instead. This was almost ground-breaking in a still-button-pushing mobile phone and MP3-world, and with the added function of it being compatible with Windows (goodbye Apple vs Microsoft barrier!), you could argue it was more of a pioneer than the original.
Between the second and fourth generations, the majority of changes made were design tweaks and storage capacity increases and so it wasn’t until the fifth generation that there seemed to be another leap. This time, there was a revamp of the design which one could argue was the biggest shift to the ones we see now. This was perhaps due to the change in color options, adding in a black version of the traditional white model. It should also be noted that with the inclusion of the fifth generation, owners now had to download iTunes rather than using a CD to install the software. With another increase in hard drive space and songs being played as MP4 files, it could be argued that this generation was the most instrumental in the iPod’s continued success.
Rounding off the evolution of the iPod with the sixth generation, Apple finally removed the option of the traditional white colour. The hard drive was now up to a minimum of 80GB (with an option for a much larger 160GB) available, a huge increase from the 10 and 20GB models of the first generation. Since this was to be the last instalment of the iPod, it was then dubbed the ‘iPod Classic’ and Apple shifted focus to the Touch, Nano, and Shuffle.