A [[cellphone]] that features a clamshell design that flips open. With the advent of [[smartphone]]s with the slate design after the [[2000s (style)|turn of the millennium]] the design has generally fallen out of favor alongside standard cellphones.

With developments in flexible OLED screens enabling foldable smartphones, some smartphone designs have begun using a similar clamshell design.
翻盖手机 翻盖机