PROBLEM TO BE SOLVED: To provide an electronic device capable of improving usefulness.SOLUTION: An electronic device 100 comprises: an external portion 110 having a holding surface to be held by a user； and a measurement portion 120 which can be displaced relative to the external portion 110. The measurement portion 120 has an arm 133 which can be displaced according to a pulse wave of a user, and a sensor 131 capable of detecting displacement of the arm 133 on the basis of the pulse wave.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】有用性を向上可能な電子機器を提供する。【解決手段】電子機器１００は、ユーザに保持される保持面を備える外装部１１０と、外装部１１０に対して変位可能な測定部１２０と、を備え、測定部１２０は、ユーザの脈波に応じて変位可能なアーム１３３と、脈波に基づくアーム１３３の変位を検出可能なセンサ１３１と、を備える。【選択図】図１
