Specifications as published on the amazon.com listing, read Oct 20, 2026. Where only metric is published, the US figure is our conversion, rounded, with the published figure in brackets. Manufacturers change specs; check the listing before you buy.
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Compared side by side in Best Self-Cleaning Litter Boxes
Is it right for your pets?
Answer 1 quick question. We check this robot against the maker’s published specs and tell you yes or no, and why.
Who it suits
Cats up to 25 lb, with a low 12 in entry: SmartSpin rotates to sift clumps into a sealed drawer, and the listing says it runs hands-free for up to 2 weeks. It takes clumping or non-clumping litter and reports weight and visits in the PetSafe app.