Electronic device

An electronic device, comprising:

• a housing comprising:
• a front plate,
• a rear plate spaced apart from the front plate, and
• a side frame enclosing an internal space between the front plate and the rear plate along a circumferential direction of the front plate and the rear plate;
• a band comprising a connecting portion that is detachably connected to the housing, and provided to be worn on a body of a user;
• and
• a fastening portion configured to fix the connecting portion to the housing,
• wherein the side frame comprises:
• a connecting slot formed to be recessed on an outer circumferential surface of the side frame,
• a first fastening hole formed in a first inner side wall of the connecting slot, and
• a second fastening hole formed in a second inner side wall of the connecting slot opposite the first inner side wall,
• wherein at least a portion of the connecting portion is inserted into the connecting slot along an insertion direction from the outer circumferential surface toward an inner circumferential surface of the side frame, and
• wherein the fastening portion is configured to connect the side frame and the connecting portion while passing therethrough, in a fastening direction inclined with respect to the insertion direction, as viewed from the front plate.