To provide an electronic device capable of improving usability.SOLUTION: The electronic device includes a base part and a measuring unit which is displaceable along a surface crossing the surface of the base part. The measuring unit includes an arm displaceable in a direction substantially parallel to a displacement direction of the measuring unit according to a pulse wave of a subject, and a sensor capable of detecting the displacement of the arm based on the pulse wave.SELECTED DRAWING: Figure 1【課題】有用性を向上可能な電子機器を提供する。【解決手段】電子機器は、基部と、基部の表面に交差する面に沿って変位可能な測定部と、を備える。測定部は、被検者の脈波に応じて、測定部の変位方向と略平行な方向に変位可能なアームと、脈波に基づくアームの変位を検出可能なセンサと、を備える。【選択図】図1