Stepper machines can be classified as motorized and manual. Motorized steppers are more similar to those you would find in a fitness club. They tend to be easier on your joints because the machine is supporting your stepping movement. A manual stair stepper usually has a smaller footprint or space requirements. If your budget allows, most experts suggest selecting a stair climber using non - hydraulic pistons. This version is the first release on CNET Download.com.