All 39 self-cleaning litter boxes, by how they clean

An enclosed globe turns and sifts clumps through a screen into a drawer. The most common design, and the one with the most published safety data.

• Casa Leo Leo's Loo TooKitten threshold not published~$600
• CATLINK Scoop Robot ProKitten threshold not published~17 days, 1 cat~$699
• CATLINK Scooper Luxury Pro-XAutomate from ~3.5 lb / ~4 months~18 days, 1 cat~$439
• CATLINK Scooper Pro UltraAutomate from ~3.3 lb / ~4 months~18 days, 1 cat~$599
• CATLINK Scooper SEAutomate from ~3.5 lb / ~4 months~10 days, 1 cat~$259
• CATLINK Scooper SE LiteAutomate from ~3.5 lb / ~4 months~10 days, 1 cat~$219
• CATLINK Scooper Young Pro-XAutomate from ~3.5 lb / ~4 months~18 days, 1 cat~$400
• ELS PET OrbitieAutomate from ~2.5 lb / ~3 months~17 days, 1 cat~$360
• Meowant MW-SC01Automate from ~3 lb / ~4 months~8 days, 1 cat~$220
• Meowant MW-SC02Automate from ~3.3 lb / ~4 months~$230
• Meowant MW-SC09 PlusAutomate from ~3.3 lb / ~4 months~9 days, 1 cat~$650
• PETKIT Purobot Max 3Automate from ~3.3 lb / ~6 months~10 days, 1 cat~$400
• PETKIT Purobot Max Pro 2Automate from ~3.3 lb / ~4 months~11 days, 1 cat~$500
• PETKIT Purobot UltraAutomate from ~3.3 lb / ~6 months~14 days, 1 cat~$800
• PETLIBRO Luma Smart Litter BoxAutomate from ~2.2 lb / ~6 months~15 days, 1 cat~$600
• PetSafe ScoopFree SmartSpinAutomate from ~2.5 lb / ~6 months~8 days, 1 cat~$400
• PetSnowy SNOW+Automate from ~3.3 lb / ~4 months~14 days, 1 cat~$529
• Whisker Litter-Robot 4Automate from ~3 lb / ~3 months~$699
• Whisker Litter-Robot 5Automate from ~3 lb / ~3 months~$799
• Whisker Litter-Robot 5 ProAutomate from ~3 lb / ~3 months~$899
• Whisker Litter-Robot EVOAutomate from ~3 lb / ~3 months~$599

No hood or globe over the cat; the bowl tilts or rotates beneath an open rim. Suits big cats and cats that avoid enclosures.

• CATLINK Scooper Open-XAutomate from ~3.3 lb / ~6 months~17 days, 1 cat~$169
• ELS PET Orbitie AirAutomate from ~2.5 lb / ~3 months~$400
• Meowant MW-SC10Automate from ~3.3 lb / ~4 months~17 days, 1 cat~$460
• Neakasa M1 Lite PlusAutomate from ~2.2 lb / ~3 monthsSafety notice~16 days, 1 cat~$329
• Neakasa M1 PlusAutomate from ~2.2 lb / ~3 monthsSafety notice~16 days, 1 cat~$380
• Oneisall Ease S1Automate from ~2.6 lb / ~6 months~15 days, 1 cat~$230
• PetSafe ScoopFree OpenSkyAutomate from ~3 lb / ~6 months~12 days, 1 cat~$550
• Popur S7 Split Litter SystemKitten threshold not published~15 days, 1 cat~$640

A rake sweeps a disposable crystal tray that you throw away every few weeks. Cheap to buy, recurring to run.

• PETKIT Purobot Crystal DuoAutomate from ~3.3 lb / ~6 months~$200
• PetSafe ScoopFree Crystal ClassicAutomate from 6 months (no weight published)~$100
• PetSafe ScoopFree Crystal PlusAutomate from 6 months (no weight published)~$200
• PetSafe ScoopFree Crystal ProKitten threshold not published~$230
• PetSafe ScoopFree Crystal Pro LegacyAutomate from 6 months (no weight published)~$130
• PetSafe ScoopFree Crystal SmartAutomate from 6 months (no weight published)~$270

Plumbed to a water line and a drain; washes itself and sends waste down the pipe. Nothing to empty, a lot to install.

• CatGenie A.I.Automate from 6 months (no weight published)~$499
• CatGenie WhooshAutomate from 6 months (no weight published)~$469

A comb travels across a fixed litter bed and pushes clumps into a bin. Low and pan-like, with more litter exposed.

• Meowant MW-SC03Kitten threshold not published~$220
• PetSafe ScoopFree Clumping Self-Cleaning Litter BoxAutomate from 6 months (no weight published)~$280