An electronic device having one or more piezoelectric elements is provided. The electronic device includes a housing including at least one portion of a surface of the electronic device, a first piezoelectric element formed at a partial area of the housing and configured to output a signal of a designated frequency band, and a second piezoelectric element formed at another partial area of the housing and configured to receive a reflection signal in which the signal output from the first piezoelectric element is reflected by an external object that has contacted the at least one portion of the housing.