Here's why:

* Capacitive touch screens detect the electrical capacitance of your finger when it touches the screen. They're responsive, accurate, and work with a variety of touch inputs, like gestures and multi-touch.

* Resistive touch screens rely on pressure to register a touch. These are less sensitive and generally used for devices that require a stylus or a harder press to register an input.

iPod touch devices prioritize a smooth and intuitive user experience, which is why they utilize the more advanced capacitive touch technology.