An electronic device including a housing that accommodates a circuit board and a first electronic component connected to the circuit board, and that has an opening portion that opens upward; a cover that is provided on an upper portion of the housing, that at least partially covers the opening portion, and that has a second electronic component mounted thereon; a connecting wire that connects the second electronic component to the circuit board; and an opening/closing mechanism that can open and close the cover in a state in which the second electronic component and the circuit board are connected by the connecting wire.