Apple Insider takes a closer look at the new third-generation iPod nano and the iPod classic to see what's inside:
According to iFixIt's measurements, the new iPod nano sports approximately the same surface area (36 square centimeters) as its older siblings despite being shorter and wider. The firm notes, however, that Apple appears to be going in circles with its approach to the player's enclosure materials.
While the original iPod mini (or nano predecessor) came wrapped in anodized aluminum, Apple returned to the shiny metal back enclosure with the first iteration of the nano in 2005. Apple last year made the jump back to the more ambitious anodized aluminum enclosure for its "re-mastered" nano, only to return to the shiny metal back again this year.
In total, the new nano case has eight locking tabs (3 on the left, 2 on top and 2 on the bottom right). There are then six Phillips screws fixing the logic board to the casing. Once the screws are removed, the logic board can be lifted slightly but remains tethered by the visible click wheel cable and the hidden display cable.