A mobile electronic device (e.g., a mobile phone) includes a sensor and at least one controller. The controller performs a control base on a detection result that is detected by the sensor. For example, the controller is configured to determine a moving state by aircraft base on the detection result that is detected by the sensor. When the sensor is an atmospheric pressure sensor that is configured to detect atmospheric pressure, the controller is configured to determine the moving state by aircraft by a decrease in the atmospheric pressure, and after a determination of the moving state by aircraft, the at least one controller is further configured to keep the determination of the moving state by aircraft until the atmospheric pressure increases.