An electronic device including a first portion, a second portion, and a circuit board is provided. The first portion has a first surface including a first conductive region. The second portion has a second surface including a second conductive region and a second nonconductive region. The second conductive region and the second nonconductive region are respectively in contact with a part of the first conductive region. The circuit board has a plurality of electronic components thereon, and the circuit board is disposed at one side of the first portion and the second portion.