The Ipod Touch and the Iphone are very similar but yet different the main difference is that the ipod touch is not a cell phone, the ipod touch is a little smaller and basically has all the same features as the iphone except for that it is not a cell phone and that you can only use the internet when you have a wifi connection. With the iphone you can use it as a music platyer, cell phone or computer you can use the internet from anywhere with the iphone.