PETKIT Purobot Ultra
Automatic litter box: the maker’s published limits, with the page each was read from. Litter robots are judged against your house on the guides below.
Product links on this page will be affiliate links when the site goes live; they do not change which units are picked. How that works.
Amazon listing verified as the bare unit at $800 on September 17, 2026; the link goes live with the site.
The limits the maker publishes
Every figure below was read from the maker’s page or manual, and the link beside it goes there. A limit the maker does not publish is absent, never guessed.
| Limit | Maker figure | Read from |
|---|---|---|
| Cat weight, from | 3.3 lb | source |
| Cat weight, to | 22 lb | source |
| Drawer lasts, one cat | 20 days | source |
| Entry height | 10.4 in | source |
| Litter | clumping | source |
| Warranty | 2 years | source |
| App | yes | source |
| Safety sensors | xSecure Safety System: 20 high-precision sensors, anti-pinch structure, stops immediately on pet proximity | source |
| Width | 20.9 in | source |
| Depth | 32.2 in | source |
| Height | 24.1 in | source |
| Subscription required | no | source |
Recall screen: no published CPSC recall names this exact model (screened 2026-09-17) (how we screen).
Living with it
What the maker’s own pages and manual say about owning this unit, and what owners report in public. Each line links to where it was read.
- Consumables
- The auto-packing waste bag system uses PETKIT's own refill rings, and one ring seals the bag roughly 10 times before it needs replacing.petkit.com
- Subscription
- Full video playback from the built-in camera is gated behind the paid PETKIT Care+ subscription, which is what unlocks the 30-day video history.petkit.com
- Maintenance
- PETKIT recommends packing/emptying waste more often than the default schedule if the household is hot and humid, rather than relying on the standard 20-day interval.petkit.com
- Warranty
- The Purobot Ultra's upgraded 2-year warranty only applies to units purchased on or after January 1, 2025; earlier purchases fall back to PETKIT's standard 1-year limited warranty, and the policy is US-purchases only.petkit.com
- Support and parts
- To file a warranty claim, an owner has to email PETKIT support with proof of purchase details (purchase channel, order number, serial number, invoice) rather than just returning the unit to a retailer.petkit.com
- Known issue
- PETKIT's own FAQ on the product page warns against litter granules longer than 12mm or wider than 3mm, which rules out many large clumping or crystal litters.petkit.com
- Safety
- PETKIT states the cleaning cylinder halts immediately if it senses a cat nearby, a behavior it markets as a '100% safety' guarantee.petkit.com
- Camera and data
- PETKIT's privacy policy discloses that its 'smart visualization devices' (i.e. camera products like the Purobot Ultra) collect screenshots, videos, and in-app voice communications as part of normal operation.petkit.com
What owners and long-term reviewers report, from public threads and published reviews; not our own testing.
- Basic setup was fast and trouble-free, including connecting to wifi and the app.cats.com
- Watching full camera video playback requires paying for the separate PETKIT Care+ subscription, not just owning the box.cats.com
- The app's 'health check-up' feature just shows generic reference photos of stool types for comparison, not an analysis of the cat's actual waste.cats.com
- A customer review quoted in the piece found the unit quiet in operation with strong odor control.cats.com
- The automatic bag-refill mechanism can misfire mid-cycle, apparently mistaking a nearby full trash bag for a cat.cats.com
- A reader raised a safety question about whether the gap between the chute and the waste-bin opening is wide enough to trap a cat's paw.cats.com
- Replacement refill rings are an ongoing cost beyond the box itself, running over $10 per ring in 4-packs.cats.com
- The AI facial recognition is not fully reliable: it mixed up two cats that don't even look alike.cats.com
What independent testers found
We do not test units ourselves. These are figures and verdicts published by named testers, with the maker’s claim beside them where the tester gave it; where a tester relays owners’ reports rather than a measurement, the row says so.
| What | Finding | Tester |
|---|---|---|
| Also noted | Tested hands-on for over six weeks before publishing the verdict | Katelynn Sobus, cats.com |
| Also noted | Overall test score of 3.8 out of 5 | cats.com |
| Also noted | Waste chute measures just over 5 inches at its widest point | Katelynn Sobus, cats.com |
| Also noted | Replacement refill rings run over $10 per ring, sold in 4-packs | cats.com |
- Positive hands-on experience overall, but facial-recognition mix-ups and a shallow health check-up feature mean it isn't worth the high price tag. Katelynn Sobus, cats.com
Judged in
- Litter-Robot 4 vs. PetKit vs. Neakasa (compared)