A capsule endoscope includes a first sensor, a second sensor, an information generator, a signal generator, and an imager. The information generator generates third instruction information on the basis of the first instruction information and the second instruction information. The first instruction information is an analysis result of first data generated by the first sensor. The second instruction information is an analysis result of second data generated by the second sensor. The signal generator generates an imaging synchronization signal on the basis of the third instruction information. The imager performs imaging on the basis of the imaging synchronization signal and acquires an image. The information generator generates the third instruction information on the basis of a combination of at least three pieces of instruction information.