The one that buys back an hour a week · review
The Litter-Robot 4 in a supply bundle, rated for up to four cats of at least three pounds, with real-time waste and litter levels in the app.
What we take from it The reference machine of the category, sold here as a supply bundle at $749 — the box plus three OdorTrap refills, ten drawer liners, thirty wipes, two carbon filters and a mat. It is the only box on this page rated for four cats, it states its minimum detected weight, and it is the one that says it wants a firm floor. The same bundle is listed a second time, under the same manufacturer reference, fifty dollars higher.
The Litter-Robot 4 with a year’s worth of consumables: three OdorTrap refills, ten waste-drawer liners, thirty cleaner wipes, two carbon filters and a LitterTrap mat. $749.
“Suitable for up to 4 cats; each cat must weigh at least 3 lbs (1.4 kg (3.1 lb)) to safely use Litter-Robot in Automatic Mode.”
That is the sentence this shelf asks you to look for. It is the only box on this page rated for four cats, and one of three that publishes the floor below which the machine cannot feel the animal. Mimfam and teweoa publish nothing.
“The patented sifting process automatically separates your cat’s waste from the clean litter.” The globe rotates and the litter falls through a screen; the clumps do not. There is no rake to jam and no comb to clean, which is the mechanical argument for the design and the reason the drawer, not the bed, is what you touch.
It takes any clumping litter — which rules out crystal, as the ScoopFree Ultra on this shelf rules out clumping.
“Monitor waste and litter levels in real time, see litter box activity, and track kitty’s weight after each use.”
Litter level is the useful half. Every connected box here reports visits; this one reports how much clean litter is left, which is the thing you would otherwise discover by opening the lid.
“Weight scale technology is most accurate when the unit sits on a firm surface, not carpeting or uneven surfaces.”
Worth reading before buying, because the Litter-Robot EVO further down this page — same brand, same weight-scale principle — says the opposite: “can be used on any surface, even carpet”. If the box is going on carpet, the EVO is the one Whisker endorses for it.
Manufacturer reference LR4-COREBD-BK, 10,886 g (384 oz), 610 × 610 × 787 mm (24 × 24 × 31 in). A second amazon.com listing carries the same reference and the same contents list word for word, at $799. This page is written on the $749 one. Check the reference and the contents before buying either.
No cycle time, no noise level, no waste-drawer capacity in liters, and no figure for how long the drawer lasts. The bundle counts the consumables but not the days.
Read on the day this page was built: $749 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 | $749 (a second listing of the same reference is $799) |
|---|---|
| Cats | Up to 4 |
| Minimum cat weight | 3 lb (1.4 kg) in automatic mode |
| Mechanism | Rotating globe with a sifting screen |
| Litter | Any clumping litter |
| App | Waste and litter levels in real time, activity, weight |
| Floor | Firm surface — not carpet, per the manufacturer |
| Body | 610 × 610 × 787 mm (24 × 24 × 31 in), 10,886 g |
| Bundle | 3 OdorTrap refills, 10 liners, 30 wipes, 2 carbon filters, mat |
| Reference | LR4-COREBD-BK |
| Noise level | Not published |
| Amazon reference | B0FFDNZSHT |
| EAN | 0810157861375 |
Whisker says to avoid it: "weight scale technology is most accurate when the unit sits on a firm surface, not carpeting". The box still cycles on carpet, but the weight readings — which are how it identifies which cat has visited — become unreliable. The Litter-Robot EVO on this page, from the same brand, explicitly reverses that: "can be used on any surface, even carpet". For a carpeted room, that is the model the manufacturer endorses.
Three OdorTrap refills, ten waste-drawer liners, thirty cleaner wipes, two carbon filters and a LitterTrap mat. What Whisker does not publish is how long each lasts, so the bundle cannot be converted into months. The neighboring cassettes and filters shelves on this site exist because these are the parts that keep being bought, and the carbon filters on them are changed every two to three weeks.
Both carry the manufacturer reference LR4-COREBD-BK, the same weight and dimensions, and the same contents list word for word. One is titled "Supply & Accessory Bundle" at $799, the other "Supply Bundle" at $749. Nothing published distinguishes them. Compare the reference and the contents list rather than the title.
Details checked on October 6, 2026.
A three- or four-cat household on a hard floor, wanting litter level reported remotely
Amazon reports what buyers took in the month before this page was last checked: at least 500.
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.
10 L waste · 41.5 × 39 cm (16.3 × 15.4 in) entry · 4 pairs IR + 3 hall sensors · 32 dB
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.
Best for: A first automatic box for an adult cat, where $99 is the deciding figure
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
