Most of the inflatable hot tubs have air jets. They are cheaper to manufacture and provide affordable but amazing massage. How come they are so cheap? Well, they reuse the same blower that inflates your spa when setting it up for pushing the air through a hose into a ring on the floor with holes in it. While this doesn’t sound very sophisticated, the massage and tinkling feeling on your skin is actually very pleasant.
However, two details must be taken into consideration here to purchase a good seat: the weight and the build of the seat. Some brands manufacture quite flawed inflatable seats. They have been proved inefficient as they will float back to the surface or will move all the time with the strength of the jet streams. You have to consider specially heavy pillow seats that are immersible.