A wearable electronic device includes: a reading section configured to read optical information; a display section configured to display information read by the reading section; and a mounting section having at least a part formed of a flexible member and configured to support the display section and the reading section, wherein the mounting section is wearable to an arm and is configured to be capable of fixing the display section to a radius of a forearm and the reading section to a back of a hand or a back of a finger.