Best-of lists

Every open-top self-cleaning litter box we cover, ranked by how long the maker says the waste bin lasts, with cat limits and litter types.

Enclosed globe and drum self-cleaning litter boxes we cover, ranked by the maker's stated waste-bin life, with cat counts, weights and litter.

Self-cleaning litter boxes whose makers state a noise level, ranked quietest first, for bedrooms, apartments and noise-sensitive cats.

Self-cleaning litter boxes whose makers state they work with clumping litter, ranked by stated noise, with cat limits and bin life.

Selective cat feeders that open only for the registered cat's microchip or RFID tag, ranked by capacity, for prescription and separate diets.

Camera cat feeders ranked by hopper capacity, with video, night vision, two-way audio and Wi-Fi bands from the listings.

Automatic feeders that take wet food, with ice-pack or active cooling, ranked by capacity, from the makers' listings.

Feeders that split each meal into two or more bowls, ranked by capacity, for cats on the same diet.

App-controlled cat feeders ranked by hopper capacity, with meals per day, portion size and Wi-Fi bands from the listings.

Automatic feeders with hoppers of 6 liters or more, ranked by stated capacity, for longer absences and multi-cat homes.

Programmable cat feeders you set on the unit, no app or Wi-Fi needed, ranked by hopper capacity.

Cat water fountains with stainless steel tanks or trays, ranked by stated capacity, with noise, filter schedule and power.

Battery-powered cat water fountains ranked by stated capacity, with battery and sensor modes from the listings.

Cat water fountains whose makers state a noise level, ranked quietest first, for bedrooms and noise-shy cats.

Cat water fountains holding 3 liters or more, ranked by stated capacity, for multi-cat homes and fewer refills.

Replacement filters for popular cat fountains, ranked by pieces per pack, with what each fits and how often to change it.

Pet cameras that toss treats or play with your cat, ranked by field of view, with video, night vision and subscription notes.

Pan-tilt pet cameras ranked by field of view, with video resolution, night vision and local storage from the listings.

Pet cameras that record to a microSD card, ranked by the largest card the maker supports, so you can keep footage without a monthly plan.

Unscented clumping clay litters ranked by bag weight, with grain and dust claims, for scent-sensitive cats and self-cleaning boxes.

Plant-based cat litters ranked by bag weight, from tofu and corn to wheat, grass and walnut shell, with clumping and flushing notes.

Silica crystal cat litters ranked by bag weight, for crystal-tray self-cleaning boxes and standard pans.

Drawer bags and liners for self-cleaning litter boxes, ranked by bags per pack, with the models each states it fits.

Cat litter disposal pails ranked by how long the maker says the included refill lasts, with capacity and refill type.

Refills for litter disposal pails ranked by how long the maker says each lasts for one cat, with the pails they fit.