The gimbal is an accessory used during photography and video shoots. Very simply, one mounts their DSLR or phone on a gimbal and can move the camera in any way they wish, and the gimbal will stop the camera from selection up human errors like shaking or jittering. Gimbals use a mix of sensors and motors to stop your camera from by accident shaking. This function is called the stabilizer. It's the key to how it creates smooth shots.