Wearable electronic device with water repellent structure using speaker module and method for sensing moisture penetration thereof

The present disclosure may disclosure an electronic device having a water repellent structure. The disclosure electronic device may include: a housing; a speaker module disposed inside the housing and coupled to the outside of the electronic device; a sensing module disposed inside the housing and coupled to the outside of the electronic device; and a processor coupled to the sensing module and the speaker module. The processor may be configured to determine whether foreign matter is present via the sensing module, and output a signal of a specified frequency range via the speaker module so that at least part of the foreign matter moves to the outside, based on the sensing result.