The iPod nano 3G has come to replace the popular second generation on September 5, 2007. When we saw a photo of the iPod nano 3G for the first time, we had an impression that the player became much larger. It can be explained with the position and size of the traditional click wheel-this wheel was almost as wide as the device itself in previous models, but now there is plenty of space at the sides, which creates an illusion of a wider player.