The one that buys back an hour a week · review
A $99.97 open-top automatic box with a 10 L waste bin, a large top entry and seven safety sensors, that publishes no minimum cat weight.
What we take from it The cheapest machine on this page at $99.97, and the one that publishes the most for the money: a 10 L waste bin, a 41.5 × 39 cm (16.3 × 15.4 in) top entry, four pairs of infrared sensors and three hall sensors, at 32 dB. What it does not publish is the one figure this shelf tells you to check first — the minimum weight it will detect. It carries the same manufacturer reference, AS11, as the teweoa box twenty dollars above it.
An open-top automatic box at $99.97 — the cheapest machine published on this shelf — with a 10 L waste container, a top entry of 16.33 × 15.35 in (41.5 × 39 cm), and a stated noise level of 32 dB. It ships with liner bags and a litter mat.
Four figures on this listing are rare at this price: the entry opening in both dimensions, the waste capacity in liters, the sensor count broken down by type, and the noise level. The teweoa box further down this page, at $119.99, gives one of those four.
“4 pairs of infrared sensors and 3 hall sensors”, stated to stop the cycle the moment a cat is detected inside and resume once it has left.
A hall sensor reads a magnet, so those three are almost certainly watching the lid and the waste drawer rather than the cat — a machine that cycles with the bin removed is the other way one of these fails. Naming them separately is more than most listings in this survey do.
“Unlike side-entry models that may pose a risk of kitten entrapment, this airy layout ensures easy access.” At least four of the fifteen boxes already published here are open-top, and this is the usual argument for it.
A top entry also means a cat has to step up and down over a 61 cm (24 in) body, which is the argument against it for an old or arthritic cat.
The buying advice on this page is to check the minimum detected weight first, because a box that cannot feel a small cat will cycle while it is inside. Whisker publishes 3 lb for both its machines. PETLIBRO publishes a 2.2 lb floor below which auto-clean should be switched off.
Mimfam publishes nothing. “Detects your cat’s presence” is the whole statement, and that leaves a kitten unaccounted for.
Reference AS11, 9,979 g (352 oz), 540 × 515 × 610 mm (21.3 × 20.3 × 24 in), 32 dB. The teweoa listing on this page gives the same reference, the same noise figure and a body six millimeters wider, at $119.99. They are the same box under two names, and this is the cheaper one.
No minimum cat weight, no maximum cat weight, no cycle time, no litter compatibility. Ten days between emptyings is given for a single cat, with no figure for two.
Read on the day this page was built: $100 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-06. The live price is at the top of the page.
| Price | $99.97 |
|---|---|
| Waste capacity | 10 L |
| Top entry | 16.33 × 15.35 in (41.5 × 39 cm) |
| Body | 540 × 515 × 610 mm (21.3 × 20.3 × 24 in), 9,979 g |
| Safety sensors | 4 pairs infrared + 3 hall |
| Noise | 32 dB |
| Emptying interval | Up to 10 days, one cat |
| Manufacturer reference | AS11 — shared with the teweoa box |
| Minimum cat weight | Not published |
| Litter compatibility | Not published |
| Amazon reference | B0F6TK43JT |
| EAN | 0199284528147 |
Every published figure says yes. Both carry the manufacturer reference AS11, both state 32 dB, both are 515 mm (20.3 in) deep and 610 mm (24 in) tall, and the bodies differ by six millimeters in width. The weights differ by 181 g (6.4 oz). The teweoa listing does not even carry its brand in the title. The practical consequence is the price: $99.97 against $119.99 for what the references say is one box.
The listing does not let you answer that. It describes four pairs of infrared sensors and three hall sensors that stop the cycle when a cat is detected, but it never publishes the weight below which detection fails — and that is the figure the buying advice on this shelf asks for first. Whisker states 3 lb (1.4 kg) for both its boxes; PETLIBRO says to disable auto-clean under 2.2 lb. For a kitten, prefer a machine that publishes the number.
"A single cat can go up to 10 days without manual scooping", on a 10 L container. That is the largest waste capacity stated on this page — the Litter-Robot 4 drawer and the PETLIBRO bin are both smaller. No figure is given for two or three cats, and the litter type changes the answer, since clumping clay is heavier and bulkier per visit than tofu.
Details checked on October 6, 2026.
A first automatic box for an adult cat, where $99 is the deciding figure
Amazon reports what buyers took in the month before this page was last checked: at least 7,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for pet devices and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Open-top · infrared and hall sensors · 32 dB · same AS11 as the Mimfam
An open-top automatic box at $119.99 carrying the same manufacturer reference as the cheaper Mimfam machine, with fewer figures published.
Best for: Nobody, while the identically referenced Mimfam listing is in stock twenty dollars lower
AI camera · 11 L sealed bin · 10 cats · 97% odor claim · subscription
A camera-equipped automatic box that analyzes waste, recognizes up to ten cats and seals 11 L, with the analysis and recording behind a subscription.
Best for: A multi-cat household that wants health data from the box and accepts a recurring fee
Up to 2 cats · min 3 lb · works on carpet · 617 × 523 × 701 mm (24.3 × 20.6 × 27.6 in)
A compact Litter-Robot for one or two cats, with weight-based cat identification in the app and manufacturer clearance to stand on carpet.
Best for: One or two cats in a small bathroom, or any room with carpet
