The present disclosure provides a wearable device comprising: a connector and at least two bodies, the connector is used to connect two of the at least two bodies, an opening structure is formed between portions of the two of the at least two bodies connected by the connector. The opening structure can reduce an area covered by the wearable device on the user's skin. The effect of the wearable device on the heat dissipation of the user's skin can be reduced. Compared with the non-hollow wearable device, the wearable device with the open structure is light in weight, thus the overall weight of the wearable device is reduced.