To provide an imaging device capable of obtaining high-quality imaging data. The imaging device includes a first circuit and a second circuit. The first circuit includes a photoelectric conversion element, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a first capacitor, a second capacitor, and a third capacitor. The second circuit includes a seventh transistor. The imaging device can compensate variation in electrical characteristics of an amplifier transistor included in the first circuit.