The two most expensive boxes on this site
Sealed waste, or knowing which cat did what?
Both are top-tier machines with app control. They solve different problems, and only one of them is about odor.
| Compared on | ScoopFree SmartSpin | PUROBOT Max Pro 2 |
|---|---|---|
| Mechanism | Sifting drum, sealed waste box | Drum with drawstring bag closure |
| Litter | PetSafe states any litter | Clumping, not crystal |
| Waste capacity | Sealed box, up to 2 weeks | 8 L, up to 15 days |
| Per-cat identification | Weight only | Face recognition plus weight |
| Camera | None | 1080p, 210°, night vision |
| Noise | Not published | 35–45 dB |
| Listed on amazon.com | Yes | No |
A tick marks the better answer on that line only. Counting ticks does not decide the page — the two verdicts below do, because these machines answer different questions.
Take the SmartSpin if there is one cat and the problem is smell in a small flat: a sealed waste box and no litter restriction is the shortest route to a box you stop noticing.
No amazon.com listing was found for this one. We hold references for other markets but none for the United States, so it may not be buyable here — which is the first thing to weigh against anything below.
Take the PUROBOT if there are several cats and you genuinely need to know which one is using the box. That is the only thing it does that the SmartSpin does not, and it is the reason for the price.
For one cat, yes — a weight sensor already knows whose data it is. For three cats of similar build, a plain weight sensor guesses and a camera does not, which is exactly the household PETKIT built it for.
PETKIT says it analyses clumps and stools so that stomach or urinary problems can be noticed early. Read that as a prompt to see a vet, not as a finding.
Any litter · sifting drum · sealed waste box · app
PetSafe’s drum box: it turns to sift clumps into a sealed waste box, takes any litter, and reports weight and visits to an app. It is the most expensive PetSafe here and the only one that is litter-agnostic.
Best for: A household that wants a sealed drum and the freedom to keep buying whatever litter the cat already accepts.
≈ $955
AI camera · multi-cat recognition · 8 L waste · 35–45 dB
The camera box: a 1080p wide-angle camera with night vision watches the drum, and PETKIT’s app identifies each cat by face and weight. The most expensive machine on this page, and the only one sold on what it sees.
Best for: A multi-cat household that genuinely needs to know which cat did what, and is willing to pay for a camera to answer it.
