Sensor and electronic device

A sensor, comprising:

• a base body including a first face, the first face including a first base region, a second base region, and a third base region;
• a first support portion fixed to the third base region;
• a first movable portion supported by the first support portion, the first movable portion including a first movable region and a second movable region, a first gap being provided between the first base region and the first movable region;
• a first insulating member fixed to the second base region, the first insulating member being located between the second base region and the second movable region in a first direction from the third base region to the first support portion, a second gap being provided between the first insulating member and the second movable region, a second distance between the first insulating member and the second movable region along the first direction being shorter than a first distance between the first base region and the first movable region along the first direction;
• and
• a first fixed electrode fixed to the first face,
• the first fixed electrode facing the first movable portion in a second direction crossing the first direction, and
• a position of any portion of the first insulating member in a plane crossing the first direction being different from a position of the first fixed electrode in the plane.