Abstract: An electronic device includes a housing, a first metal trace, a conductive pillar, a circuit board, and a metal connecting element. The housing includes a conductive via and a concave hole, and the conductive via passes through the housing. The first metal trace is disposed on an inner surface of the housing, and the conductive via is electrically connected to the first metal trace. The conductive pillar is disposed in the concave hole and exposed from the housing, and the conductive pillar is electrically connected to the conductive via. The circuit board is disposed inside the housing. The metal connecting element is disposed on the circuit board and electrically connected to the first metal trace.