The Apple iPod photo*, as its name suggests, added photo storage and viewing capabilities to the iPod line. It was equipped with a 40 GB or 60 GB 4200 RPM ATA-66 hard drive, holding "up to" 10,000 or 15,000 songs in "128-Kbps AAC format," respectively, and as many as 25,000 photos in iPod viewable format.
Although Apple considered it part of the iPod (4th Gen) series—sharing the "ClickWheel" and basic case design—it had many enhancements, most notably a two-inch diagonal 65,536-color LCD with an LED backlight. Major software improvements included color throughout the interface, a new "Myriad" font, and support for viewing photo slideshows with synchronized music on the internal display or on a TV via the included AV cable.
Battery life was also improved over the iPod (4G), offering up to 15 hours of music and 5 hours of slideshows, though skip protection was reduced to 17 minutes. Models shipped before February 23, 2005, required iTunes to convert photos for viewing on the device. After that date, the iPod photo (M9830LL/A) could immediately display images transferred via the optional iPod Camera Connector (US$29).
*As a point of trivia, this model was introduced as iPod Photo (capitalized) and later changed to iPod photo (lowercase).