A feature phone is a mobile phone that retains the form factor of earlier-generation phones, with button-based input and a small display. Feature phones are sometimes called dumbphones in contrast with touch-input smartphones. They tend to use an embedded operating system with a small and simple graphical user interface, unlike large and complex mobile operating systems like Android or iOS. Feature phones typically provide voice calling and text messaging functionality as well as basic multimedia and Internet capabilities and other services offered by the user's wireless service provider. Feature phones often contain things like a backlit LCD screen, a hardware notification LED, a micro USB port, a physical keyboard, a microphone, an SD card slot, a rear-facing camera to record video and capture pictures, and GPS. Some feature phones include a rudimentary app store that include basic software such as mobile games, calendar and calculator programs.
Recently feature phones have begun to offer similar features to those of smartphones, so the main difference between the two groups now is the third-party software support.