Wearable device and housing thereof

A housing, applied to a wearable device, comprising:

• a housing body, having a cavity therein, with a first through hole being provided in an outer wall of the housing body, wherein the first through hole is in communication with the cavity, wherein
• a first separate plate and a second separate plate are provided in the cavity, a gap between the first separate plate and an inner wall at one side of the cavity is in communication with the first through hole;
• a first recess for placing a water absorption device is provided between the first separate plate and the second separate plate, a bottom of a second recess between the second separate plate and the inner wall at another side of the cavity is in communication with the first through hole;
• and
• a partial bottom of the second recess close to the first through hole is at a lower position than another partial bottom of the second recess away from the first through hole.