Typically, magnetic stud finders don’t need a display. But for electronic stud finders with digital displays, the quality of the display and the information displayed can make a difference in how easy it is for you to use the device. The simplest models are electronic and have an LED light that blinks when you scan it across a stud, and if locating the stud is your only concern, these devices work great. More sophisticated models display additional information like how close you are to the middle of a stud, which way you need to move to find the center, and even what material the stud is made of. Regardless of what information you want to receive, the bigger the screen, the easier the information is to read, especially if you accidentally leave your reading glasses in a different room. When shopping, choose a model with a screen that is easy for you to read and understand.