The one that buys back an hour a week · review
The best-documented box on this page: PETKIT publishes the drum volume, the internal dimensions, the entry height, the cat weight range and the age limit. It takes any clumping litter except crystal.
The bottom line The box to buy if your cats are adult, mid-sized and on clumping litter, and if you value a manufacturer that publishes its limits. The liner schedule and the carpet restriction are real constraints, and both are stated rather than hidden.
A 76-litre rotating drum with a 7-litre waste bin underneath, app-controlled over 2.4 GHz Wi-Fi, with a safety system PETKIT calls xSecure: infrared and weight sensing, an anti-pinch infrared barrier, activity detection and a remote alert.
PETKIT publishes what most of this market leaves out — 48 cm of internal diameter, 52 cm of height, a 20 cm entry, a 2 to 8 kg weight range, and an explicit exclusion of cats under six months. Those five numbers answer the question that actually decides a purchase: will my cat fit, and will the box know it is there?
Three of them, all from PETKIT’s own listing. No crystal litter — clay, tofu, bentonite and mixed clumping litters only. No carpet — the sensors are specified for a level hard floor, and PETKIT says carpet can cause malfunctions. And the liner is a consumable, replaced every 20 to 30 days to keep the drum leak-proof.
PETKIT gives roughly 15 days for a single cat before the waste bin needs emptying, which is the highest figure on this page and the reason the box suits people who travel. With two or three cats, divide accordingly — the bin is 7 litres whatever the drum holds.
The weight sensor is what makes the machine safe, not the app. It is also what produces the usage data PETKIT shows in the app: weight, times, duration. Useful to notice a change; not a diagnosis, and not a substitute for a vet.
| Drum capacity | 76 L, plus a 7 L waste bin |
|---|---|
| Internal dimensions | 48 cm diameter × 52 cm high (PETKIT figure) |
| Entry height | 20 cm |
| Cat weight | 2–8 kg; PETKIT states it is not suitable for cats under 6 months |
| Litter | All common clumping litters — clay, tofu, bentonite, mixed. Not crystal. |
| Safety | xSecure: infrared and weight sensors, anti-pinch infrared, remote alert |
| Wi-Fi | 2.4 GHz only |
| Amazon reference | B0D9QJZ7FG (identical on 6 markets) |
| EAN | 6975069304243 |
PETKIT states it is not suitable for cats under six months, and gives a working range of 2 to 8 kg. That is a manufacturer limit on a machine that moves, so it is not a suggestion — a kitten under the detection weight is a kitten the box does not know is inside. Keep a manual tray until the cat is comfortably over the threshold.
PETKIT specifies a level hard floor and says carpet can disturb the sensors and cause malfunctions. A drum that mis-senses is a drum that turns at the wrong moment, so this is one instruction worth following exactly rather than testing.
PETKIT specifies replacing the tri-proof liner every 20 to 30 days to keep the drum leak-proof. That is roughly 12 to 18 liners a year, and it is the recurring cost to price before buying — the drum itself needs nothing else.
App · ~35 dB · 9 L litter · all litters except crystal
A mid-priced drum box with an ozone-ion deodorising system and the Smart Life app. It holds up to 9 litres of litter, runs at about 35 dB, and takes everything except crystal.
Best for: A European household that wants a full-featured drum box at the lower end of the price range and already has other Smart Life devices.
≈ 170 €
Open design · cats to 15 kg · 11 L waste · ≤50 dB
An open-topped drum box for cats that refuse enclosed machines, with the widest stated weight range here — up to 15 kg — and 6 infrared plus 4 weight sensors watching the cycle.
Best for: A large cat, or a nervous one that will not enter an enclosed machine — and a household that can put the box somewhere the litter scatter does not matter.
≈ £300 / 315 €
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.
≈ 600 €
