A smartphone can come in a variety of different sizes but it is rectangular in shape with no lid or hinge, and includes a large touch screen. All current smartphones have touch screens. The touch screen is sensitive to pressure and is used to interact with the device.
People with an assortment of disabilities may find a smartphone useful because of its big screen. Smartphones can be ideal for those who are blind, low vision, Deaf or hard of hearing due to their built-in accessibility functions.