Feature phones have a backlit LCD screen, a hardware notification LED, and micro-USB port and have a physical keyboard, a microphone, SD card slot, a rear-facing camera to record video and capture pictures, and GPS. 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. They tend to use an embedded operating system with a small and simple graphical user interface, unlike large and complex general-purpose mobile operating systems like Android or iOS. Feature phones are sometimes called dumbphones in contrast with touch-input smartphones. A feature phone is a mobile phone that retains the form factor of earlier-generation phones, with button-based input and a small display.
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