PROBLEM TO BE SOLVED: To reduce a load applied to a user due to carrying an activity amount meter in daily life.SOLUTION: The activity amount meter is provided that comprises a housing, and an internal component arranged in the housing. The internal component includes: a substrate comprising an acceleration sensor, a processing part calculating an activity amount on the basis of the detected value detected by the acceleration sensor, and a storage part； a secondary battery； and a power reception circuit for charging the secondary battery. The substrate, the power reception circuit, and the secondary battery are arranged in parallel in an almost same plane in the housing.SELECTED DRAWING: Figure 2ACOPYRIGHT: (C)2020,JPO&INPIT【課題】活動量計を日常的に携帯することによる利用者への負担を軽減する。【解決手段】 筐体と、筐体内に配置された内部構成部品と、を備えた活動量計であって、内部構成部品は、加速度センサ、加速度センサによる検出値に基づいて活動量を演算する処理部、及び記憶部を備えた基板と、二次電池と、二次電池への充電を行う受電回路と、を含み、基板、受電回路、及び二次電池が筐体内において略同一平面上に並列に配置される活動量計を提供する。【選択図】図２Ａ
