I did go to a gym but due to the long term cost of gym membership I've decided to invest in some home gym equipment. I found the cross trainer machine the most beneficial to me at the gym but I'm concerned about the space it will take up at home. Someone suggested that an Air Walker is similar to a Cross Trainer but it can be folded away when not in use.

Does anyone know the difference between these 2 machines? I want a machine that tones up the legs and arms, not really muscle building.

Thanks!