21 Self-Cleaning Cat Litter Boxes, From Semi-Automatic to Touch-Free

PetSafe ScoopFree Crystal Pro Self-Cleaning Cat Litter Box ($184, originally $230)

If your cat likes a top-entry litter box, you can try this model, which is the number one bestseller in the top entry category. The design makes for unbeatable odor control and comes with a disposable crystal tray, just like the other PetSafe models. This litter box can only be used with crystal litter, so be sure to purchase the refills, too.