The second and last iteration of the iPod mini brought a larger capacity, brighter nuances of four of the original four colours, with the fifth (gold) being dropped. The clickwheel now has its buttons colour-matched to the case. Also its battery was improved.

iPod mini (2nd Gen)

iPod mini (2nd Gen)
Release Year 2005
Capacity 4 GB, 6 GB
Apple Order No. M9800LL/A
Model Number A1051 (EMC 2044)
Actual Capacity 4 GB - Pink 6 GB - Pink 6 GB - Gray