Disclosed are a wearable device and a terminal. The wearable device includes: a wearable component and a power supply component fixed on the wearable component. The power supply component includes a first supporting surface, an energy conversion element and an energy storage element. The energy conversion element includes: a magnetic structure, an elastic structure and an induction coil. One end of the magnetic structure is connected to the first supporting surface through the elastic structure. The magnetic structure moves with respect to the induction coil through the elastic structure when the wearable device is shaken, such that an alternating current is generated in the induction coil. The energy storage element is adapted to store electric energy obtained by the energy conversion element.