According to various embodiments, there may be provided an electronic device including a housing having a plurality of sides, a first conductive member constructing at least part of the plurality of sides, a second conductive member disposed inside the housing, a first sensor circuit which provides a first output indicating a first capacitance value related to the first conductive member and/or a change to the first capacitance value, a second sensor circuit which provides a second output indicating a second capacitance value related to the second conductive member and/or a change to the second capacitance value, and a control circuit which receives the first and second outputs from the first and second sensor circuits. In addition, other embodiments are also possible.