LITTER ROBOT 4

What we found

This is a Litter-Robot 4, an automatic self-cleaning litter box made by Whisker for cats roughly 3 to 25 lbs, and one unit is rated for households with up to four cats. It stands about 22 inches wide, 27 inches deep and 29.5 inches tall — close to the footprint of a nightstand — and weighs about 24 lbs empty, with an entryway 15.75 inches wide and a globe interior around 16.5 inches tall. It runs on a 15V DC plug-in power supply into any standard wall outlet, so no plumbing or installation is needed, though the manufacturer asks for a firm, level surface with a few inches of clearance behind it for the weight sensors to read correctly. After a cat exits, laser and weight sensors trigger a sifting cycle that drops clumps into a sealed, carbon-filtered waste drawer measuring about 5.5 by 13.5 by 9.25 inches, which a one-cat household can typically go around a week before emptying. It connects to the Whisker app over Wi-Fi for litter and waste level alerts plus cat weight and usage tracking, and suits anyone with clumping litter who wants to stop scooping daily or is managing multiple cats in a small apartment.