2G 10, 20 GB Touch sensitive immobile wheel. FireWire port had a cover. FireWire 17 July 2002 $399, $499 3G 10, 15, 20, 30, 40 GB Dock Connector. Middle row of buttons. FireWire (USB for syncing only) 28 April 2003 $299, $399, $399, $499 4G / photo 20, 30, 40, 60 GB Buttons integrated to "touch wheel". Color display with photo viewer replaced monochrome display in October 2004. FireWire or USB July 2004 $299, $349, $399, $599 5G 30, 60, 80 GB Slimmer design. Larger screen with video player and lyrics support. No AC adapter, Universal Dock, or A/V cables included. The September 2006 enhanced USB (FireWire for charging only) 12 October 2005 $249, $299, $349 version featured a brighter display, longer video battery life and a music search function. New, redesigned earphones included. iPod mini 1G 4 GB First release. Available in 5 colors. USB or FireWire 6 January 2004 $249 2G 4, 6 GB Brighter color variants with longer battery life. Gold color discontinued when 2nd generation first came to market. Clickwheel lettering matched body color. No AC adapter. This model has been discontinued. USB or FireWire 22 February 2005 $199, $249 iPod nano 1G 1, 2, 4 GB First release. Successor to iPod mini. USB (FireWire for 7 September $149, $199, Slimmer design with flash memory, color screen and lyrics support. charging only) 2005 $249 2G 2, 4, 8 GB Anodized aluminium case in 5 colors. Brighter screen and longer battery life. New, redesigned earphones included. Colors specific to size USB 12 September 2006 $149, $199 $249 iPod shuffle 1G 512 MB, 1 GB First release. The iPod without a screen or scroll wheel. USB 11 January 2005 $99, $149 (lowered to $69, $99) 2G 1 GB Aluminum case with smaller dimensions and built in clip USB (via dock only) October 2006 $79 Each new generation usually has more features and refinements whilst typically being smaller and lighter than its predecessor. Notable changes include the touch sensitive wheel replacing the mechanical scroll wheel, color displays with anti-aliased text, and flash memory replacing hard disks. Their reliability has steadily improved [8] , although there were some reported problems with the iPod shuffle. Discontinued iPods include four generations of the full-sized model, two generations of the iPod mini and the first generations of the nano and shuffle. The first generation iPods were Mac compatible only. Apple later added limited Windows support and at this time, Windows users required third- party software such as Musicmatch Jukebox, ephPod or XPlay to manage the music on their iPods. Musicmatch was included on the bundled CD. From July 2004 and onwards, every iPod was made fully compatible with either Mac or Windows, after Apple released the Windows version of iTunes on 16 October 2003. [9] [edit] Special edition and color variants In December 2002, Apple unveiled its first limited edition iPods, with either Madonna’s, Tony Hawk’s, or Beck’s signature or No Doubt's band logo engraved on the back for an additional $49. On October 26, 2004, Apple introduced a special edition of its fourth generation monochrome iPod, designed in the color scheme of the latest album (How to Dismantle an Atomic Bomb) by Irish rock band U2. It had a black case with a red scroll wheel and the back had the engraved signatures of U2's band members. This iPod was updated alongside the iPod photo and 5 th generation iPod. Apple has also released Special Edition Harry Potter iPods. These are engraved with the Hogwarts Crest on the back and are available only to purchasers of the Harry Potter audiobooks. These iPods were discontinued with the introduction of the 5 th generation iPod. The 1 st generation iPod nano and 5 th generation iPod were released in black and white variants. The 2 nd generation iPod nano inherited some of its case design from the mini. [edit] Criticisms [edit] Battery life advertising Apple stated that the older original 5 th generation 60 GB and 30 GB iPods had battery lives of "up to 20 hours" [10] and "up to 14 hours" music playback respectively, when used on controlled and limited tests. For real-world use, many users report battery lives of less than 8 hours with the 30 GB video iPod. [11] In 2003, class action lawsuits were brought against Apple complaining that the iPod battery charges lasted for shorter lengths of time than stated and that the battery degraded over time. [12] The lawsuits were settled by giving . only. Apple later added limited Windows support and at this time, Windows users required third- party software such as Musicmatch Jukebox, ephPod or XPlay to manage the music on their iPods Potter iPods. These are engraved with the Hogwarts Crest on the back and are available only to purchasers of the Harry Potter audiobooks. These iPods were discontinued with the introduction