The three-way comparison
Three rotating drums with weight sensors and waste drawers. They work the same way, and they separate almost entirely on what they cost to keep, which cats fit them, and what happens when one breaks.
Prices and specifications checked
| Compare by | CATLINK Scooper Luxury Pro X | PETKIT Purobot Ultra | Litter-Robot 4 |
|---|---|---|---|
| Price | $559 | $1,199 | $1,575 |
| Proprietary consumable | None | Refill rings | Drawer liners |
| Consumables per year | $0 | not published | $72 |
| Five-year total | $559 | cannot be calculated | $1,934 |
| Cat weight | 1.58 to 10 kg | 1.5 to 10 kg | 1.36 kg min, no max published |
| Step-up height | 35.5 cm | 26.5 cm | not published |
| Entry opening | 33 x 27 cm | not published | 40 x 40 cm |
| Tofu litter | Excluded | Supported | not published |
| App required | No | For key features | No |
| Subscription | None | PETKIT Care+ | None |
| Published noise | not published | under 35 dB | not published |
| Warranty | 2 yr | 2 yr, paid extensions | 2 yr + 90 day refund |
Litter sits on top of every column and we have deliberately left it out, because no manufacturer publishes consumption and we will not invent a figure that would change all three totals.
Our commission does not follow the price, and here is the proof. A$75 flat per sale on the dearest box, 10% direct, or 8% with a 60-day cookie on the middle one, 8% on the cheapest. A flat fee on a $1,575 machine is worth less than a percentage of a $1,199 one, so recommending the expensive box would cost us money. That is why the top pick here is the cheapest thing on the page.
Over five years the CATLINK costs $559 and the Litter-Robot costs about $1,934. That gap is larger than the purchase price of the CATLINK, and it exists because one company sells you a liner forever and the other tells you to use any bag that fits. The PETKIT column cannot be filled in at all, which is its own kind of answer.
Litter sits on top of every column and we have deliberately left it out, because no manufacturer publishes consumption and we will not invent a figure that would change all three totals. The running-cost register gives current per-kilogram prices so you can add your own.
None publishes a power draw. Two of the three publish no noise figure. None publishes what a replacement part costs or who pays freight on a warranty return. On a category where the cheapest unit is $559 and the dearest is $1,575, that is a remarkable amount of silence, and it is why the registers on this site exist.
For most Australian households, CATLINK, on cost of ownership: it is the cheapest to buy at A$559 and the only one with no proprietary consumable. Choose the Litter-Robot 4 if your cat is large or has refused a box before, because of the 40cm opening and the 90-day money-back guarantee. Choose PETKIT if your cat needs the lowest possible step-up, at about 26.5cm.
CATLINK is about A$559, because there is nothing proprietary to buy. Litter-Robot 4 is about A$1,934 including five years of drawer liners at our stated one-a-week assumption. PETKIT cannot be calculated, because nobody publishes what the refill rings cost in Australia. Litter is on top of all three and no manufacturer publishes consumption.
Yes. All three are rotating drums with a weight sensor and a waste drawer underneath, and they differ far less in how they work than the marketing suggests. That is precisely why we compare them on cost of ownership, fit and warranty rather than on features: the features are close and the economics are not.