Whisker · Self-cleaning litter boxes · Buy now
Litter-Robot EVO
Flats and one or two smaller cats
around $599
Photo: Whisker, Manufacturer product image, via litter-robot.com , background removed, shown for review and comparison purposes.
around $599 (Oct 2026). Prices checked 15 October 2026. We may earn a commission from retailer links.
Litter-Robot EVO around $599
Key specs
Launched Late 2025
Cats supported Up to 2
Cat weight range 3 to 19 lb (Petful)
Footprint About 20.6 x 24.3 inches (Petful)
WasteID No
Cameras No
Mechanism Rotating globe
Our verdict
If you have one or two average-sized cats and limited space, the EVO gets you the Litter-Robot mechanism for $100 less than the 4. Larger cats should skip it.
What we like Lowest price in the current range Smallest footprint 94% positive on Whisker's store, though from only 54 reviews (Oct 2026) Cheapest current Litter-Robot Smaller footprint than the Litter-Robot 4 and 5 Strong early owner rating on Whisker's store (94% from a small number of reviews) What to know Not suitable for cats above about 19 lb No WasteID or camera Limited long-term owner data Not for cats over about 19 lb No waste-type detection or cameras
How it compares Spec Litter-Robot EVO PETLIBRO Luma Litter-Robot 4 PetSafe ScoopFree SmartSpin Price around $599 around $599.99 / £699.99 around $699 / £699 list $479.99, seen at $340 on Chewy Launched Late 2025 - 2022 - Cats supported Up to 2 - Up to 4 - Cat weight range 3 to 19 lb (Petful) 2.2 to 22 lb (1 to 10 kg) - - Footprint About 20.6 x 24.3 inches (Petful) - - - WasteID No - No - Cameras No - No - Mechanism Rotating globe - Rotating globe that sifts clumps Rotating drum Camera - 1080p, live view free - -
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Featured in our guides
ET
Researched by our editorial team. Specs come from the manufacturer; strengths and weaknesses summarise independent tests and owner reviews cited in our guides. We have not tested this robot ourselves.
How we research .
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