U+1F518 "🔘" Radio Button Unicode Character

U+1F518 "🔘" Radio Button is a graphical symbol representing a circular, often empty or filled dot used in user interface design to indicate a selectable option within a mutually exclusive group, known as a radio button group. This character was added to the Unicode Standard as part of version 6.0 in 2010 under the Miscellaneous Symbols and Pictographs block, and it is commonly employed in digital forms software or settings menus to visually depict a choice that cannot be toggled off individually without selecting another option. When rendered as a solid circle with a smaller inner dot or shaded center, it suggests a selected state, while an empty outline indicates an unselected state, making it a compact and intuitive icon for user input.