A foldable device includes a flexible display including first, second, and third portions; a body including first, second, and third support portions which respectively supports the first, second, and third portions; a hinge including a first rotation axis which connects the first support portion to the third support portion, and a second rotation axis which connects the second support portion to the third support portion; and a slot hole which is rotatably coupled with the first and second rotation axes, and which moves the first rotation axis and the second rotation axis when the first support portion and the second support portion rotate with respect to the third support portion. The first and second rotation axes allow the first and second support portions to rotate with respect to the third support portion when the flexible display changes from an open state to a closed state.