To provide a seat system that allows the information of the user seated in the seat to be acquired by another user, a seat system includes: a seat main body; at least one sensor provided in the seat main body; a control device for processing a signal from the sensor; and a first user interface communicating with the control device and notifying information based on a signal from the control device. Preferably, the sensor acquires information obtained from a seated person who is seated on the seat main body. Preferably, the seat system includes a camera for capturing an image of the seated person who is seated on the seat main body, and the control device causes the first user interface to display the image captured by the camera.