Touchscreens make interacting with you phone easy, but for some tasks you need a stylus pen. Especially on smaller phones, it can be difficult for some people to accurately touch the icons or type on the small on-screen keyboard. Some cases come with a special lot to hold your stylus. Cheap stylus pens are available that will work with most phones. Just be certain that you buy one which will work with the screen on your phone. There are two types of pens. One will work with capacitive screens, and the other will work with resistive screens.