A movable hinge to pivotally couple a base and a back panel of an electronic device includes a first slide portion and a second slide portion slidable against the first slide portion. The first slide portion includes a track portion and a first sloped surface connected to the track portion. The second slide portion has a first pin with two ends respectively running through the track portion and fastening to the base, a butting portion coupled on the first pin and slidable thereon, and an elastic element interposed between the butting potion and base. The butting portion is pushed by the elastic element to press the first slide portion to slide against the second slide portion and drive the back panel to move against the base.