US Patent 10338641 Smart bracelet

A smart bracelet includes a pedestal, a rotating assembly rotatably coupled to the pedestal, and a flexible display screen supported by the pedestal and the rotating assembly. When the rotating assembly is folded relative to the pedestal, the flexible display screen is bent and has a first display area. When the rotating assembly is unfolded relative to the pedestal, the flexible display screen is unfolded and has a second display area. The second display area is larger than the first display area. The display area of the smart bracelet of the present application is changeable.