Fourth-Generation iPod - The 4th generation iPod was another complete redesign and included a handful of spin-off iPod products that were eventually merged into the 4th generation iPod line.
This model iPod brought the clickwheel, which was introduced on the iPod mini, to the main iPod line. The clickwheel was both touch-sensitive for scrolling and had buttons built in that allowed the user to click the wheel to select menu, forward/backward, and play/pause. The center button was still used to select onscreen items.
This model also featured two special editions: a 30GB U2 edition that included the band's How to Dismantle an Atomic Bomb album, engraved signatures from the band, and a coupon to purchase the bands entire catalog from iTunes (Oct. 2004); a Harry Potter edition that included that Hogwarts logo engraved on the iPod and all 6 then-available Potter books pre-loaded as audiobooks (Sept. 2005).
Also debuting around this time was the iPod Photo, a version of the 4th generation iPod that included a color screen and the ability to display photos. The iPod Photo line was merged into the Clickwheel line by fall 2005.
Capacity
20 GB (about 5,000 songs) - Clickwheel model only
30 GB (about 7,500 songs) - Clickwheel model only
40 GB (about 10,000 songs)
60 GB (about 15,000 songs) - iPod Photo model only
Hard drive used for storage
Supported Formats
Music:
- AAC
- MP3
- WAV
- AIFF
- Apple Lossless
- Audible audiobooks
Photos (iPod Photo only)
- JPEG
- BMP
- GIF
- TIFF
- PSD
- PNG
Colors
White
Red and Black (U2 special edition)
Screen
Clickwheel models: 160 x 128 pixels; 2 inch; Grayscale
iPod Photo: 220 x 176 pixels; 2 inch; 65,536 colors
Connectors
Dock Connector
Battery
Clickwheel: 12 hours
iPod Photo: 15 hours
Dimensions - 20 & 30 GB Clickwheel Models
4.1 x 2.4 x 0.57 inches
Dimensions - 40 GB Clickwheel Model
4.1 x 2.4 x 0.69 inches
Dimensions - iPod Photo Models
4.1 x 2.4 x 0.74 inches
Weight
5.6 ounces - 20 & 30 GB Clickwheel models
6.2 ounces - 40 GB Clickwheel model
6.4 ounces - iPod Photo model
Price
US$299 - 20 GB Clickwheel
$349 - 30 GB U2 Edition
$399 - 40 GB Clickwheel
$499 - 40 GB iPod Photo
$599 - 60 GB iPod Photo ($440 in Feb. 2005; $399 in June 2005)
Requirements
Mac: Mac OS X 10.2.8 or higher; iTunes
Windows: Windows 2000 or XP; iTunes
Availability
Released: July 2004
Discontinued: October 2005
