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

Expedman Self Cleaning Cat Litter Box ($360, originally $500)

This litter box is both spacious and space-saving at the same time. Weighing 15 pounds with overall product dimensions of 18.9" x 20.5" x 19.9", it occupies only 4.5 cubic feet of volume. However, the internal space is large and has room for cats up to 17.6 pounds. It's suitable for most types of litter and the waste bin is on the side with a spring mechanism that blocks all odors effectively.