An input device having flexibility includes a display portion, a touch panel, a haptic element, a haptic controller, and a control portion. The touch panel is configured to acquire information on the size of a user's body part operating the input device and transmit the information to the control portion. The control portion is configured to receive the information, generate information on the positioning of a plurality of buttons, and transmit the information to the display portion. The display portion is configured to display the plurality of buttons on the basis of the received information. The haptic controller is configured to transmit information on a haptic effect to the haptic element.