Why it matters
PETKIT built the Purobot Max 3 around access: an extra-large opening and low entrance suit large breeds and older cats. The cylinder carries a K4 smart deodorizer and N60 odor eliminator, and the waste bin an N50.
Gravity, infrared and anti-pinch detection pause the cycle when a cat is near. Through Wi-Fi, the app tracks each cat's visits, duration and weight and alerts you when the drawer is full; PETKIT says the drawer holds 7 to 15 days of waste depending on cats and use.
Who it's for, and who should skip it
Good fit if
- Large breeds
- Senior cats
- Multi-cat homes
Look elsewhere if
- Homes without a level spot near an outlet
- Cats that are afraid of moving parts
- Kittens under the maker's minimum weight
Pros and cons
Pros
- Large opening
- Low entry
- Usage and weight tracking
Cons
- Several odor consumables
- Bin life varies with cats
- Wi-Fi app for full features
Limitations to weigh
- Set it on a hard, level floor near an outlet. Weight sensors read wrong on carpet or uneven tile, which can stop or trigger cycles.
- Automatic cycling has a minimum cat weight; keep automatic mode off for kittens under it and run cleans manually.
- Empty the waste bin before it's full and keep spare bags; an overfull bin is the most common cause of a stalled cycle.
- Running costs come from the bags, liners, filters and litter the maker specifies. The compatibility checker lists refills that state they fit.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | ABS Plastic | Retailer |
|---|---|---|
| Dimensions (seller) | 21.26"L x 24.2"W x 21.97"H | Retailer |
| Product weight | 21.8 pounds | Retailer |
| In the pack | 1 Count | Retailer |
| Features (seller) | App Control, Large-Opening, Low Entrance, Odor Control | Retailer |
| In the box | PETKIT Purobot Max 3 Cat Litter Box,K4 smart spray x1, N50 2.0 x1, clay litter sifter x1, cat litter remover x1, waste bag x1 rolls, power adapter x1, user manual x1 | Retailer |
| Warranty | 2 Years Warranty | Retailer |
| Waste bin lasts (maker) | 7 to 15 days | Retailer |
Alternatives worth comparing
More self-cleaning litter boxes we cover
- PetCove PurrTek Automatic Litter Box
- PETLIBRO Luma AI-Camera Self-Cleaning Litter Box
- Smarty Pear Leo's Loo Too (Casa Leo Smart)
- Whisker Litter-Robot 4
All self-cleaning litter boxes, compared in one table · Every PETKIT product we cover
Final verdict
A thoughtful step up for cats that find globe boxes hard to enter.
Where to buy
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