The iPod Touch is a line of iOS-based mobile devices designed and marketed by Apple Inc. with a touchscreen-controlled user interface. As with other iPod models, it can be used as a music player and a handheld gaming device, but it can also be used as a digital camera, a web browser and for messaging. It is similar in design to the iPhone, but it connects to the Internet only through Wi-Fi and does not use cellular network data, therefore it is not a smartphone. As of May 2013, 100 million iPod Touch units had been sold since 2007.
