Abstract: The bathtub device of the present invention includes a water discharge part (8) provided on a bathtub main body, a circulation channel (4), a circulation pump (6) provided on the circulation channel, a temperature modification part (7), a sensing unit (22) for detecting a temperature of hot water in the bathtub main body, and a controller (16) for controlling the temperature of hot water, where the controller performs a water discharge temperature adjustment mode in which the temperature of hot water discharged from the water discharge part is reduced to within the predetermined temperature range, when the temperature is higher than an upper limit temperature of a predetermined temperature range, or a water discharge temperature adjustment mode in which the temperature of hot water is increased to within the predetermined temperature range, when the temperature is lower than a lower limit temperature of the predetermined temperature range.

Abstract: There is provided a bathtub apparatus capable of satisfactorily detecting an electrocardiographic signal even in a state where water is being discharged into a bathtub by a water discharge device. The present invention is a bathtub apparatus (1) including a bathtub main body (2), a water discharge device (8) that discharges water toward inside of the bathtub main body and is provided above a first inner wall surface (2a) forming a short side of the bathtub main body, and electrodes (4a, 4b, 4c) attached to the bathtub main body to detect an electrocardiographic signal of a bathing person, where the electrodes are arranged on an inner wall surface of the bathtub main body, and are arranged closer to the first inner wall surface than a position (P) where water discharged from the water discharge device hits a water surface of the water stored in the bathtub main body.