Every Automatic Litter Box You Can Buy in Singapore

Singapore is a strange market for automatic litter boxes.

The category is dominated by American and Chinese brands that never set up here properly. Half the machines people recommend online cannot be bought locally at all — you are importing, paying GST on landed value, and accepting that a warranty claim means shipping a 10 kg appliance overseas. The other half arrive through small local resellers whose product pages carry a price, a hero shot, and almost no specifications.

Meanwhile the flats are small, the humidity is punishing, and the service yard where most people put the box is about 1.5 m wide.

So we went and built the list nobody had built: what you can actually buy here, what it costs, and — the part that matters — what each seller does and does not tell you.

Before you read this: we sell one of these

You are on a shop's website, so let us be direct about what that means for this article.

We sell an automatic litter box. It is in the tables below, at its real price, alongside six competitors. We have not left out the models that beat ours, and we have not filled in a specification we do not have.

There is one row in the second table where our own entry is blank and Litter-Robot's is filled in. That blank is real. It is the single most useful specification in this category, we do not have it in writing yet, and we would rather publish the gap than paper over it. If that specification is what decides your purchase, this article will tell you to buy somebody else's machine.

Read the rest with all of that in mind.

What is actually available in Singapore, and at what price

Prices below are as listed by Singapore retailers on 5 September 2026. This category discounts constantly, so check current pricing before you buy. Where we find a listed price has moved materially, we update this table and note the date.

Sold locally

Model	Design	Listed price (SGD)
Kopipets Automatic	Open-top sifter	280
CATLINK Scooper Open-X	Open-top	285
Neakasa M1 Plus	Open-top	509
PetSnowy SNOW+	Sealed, proprietary bag	529
PETKIT PuraMax 2	Sealed rotating cylinder	599 (u.p. 699)
CATLINK Scooper Pro Ultra	Drum + camera	640
CATLINK Scoop Robot Pro AI	Drum + dual camera	859

Import only, landed cost

Model	Design	Landed estimate (SGD)
Petlibro Luma	Drum	~900
Litter-Robot EVO	Rotating globe	~950
Litter-Robot 4	Rotating globe	~1,200–1,400
Litter-Robot 5 Pro	Rotating globe	~1,400–1,700

The first thing that jumps out is the spread. The same job — a machine that sifts a litter tray on a timer — costs anywhere from S$280 to S$1,700 in this market. A sixfold range for one function is unusual, and it should make you ask what the extra S$1,400 is buying.

Some of it is real: better sensors, better firmware, an actual engineering budget, a support line. Some of it is a brand premium on an appliance category with very low switching costs. This article will not settle that for you. The next section is the sharpest test we know.

The specification almost none of them publish

Automatic litter boxes detect the cat partly by weight. Weight sensors have a floor. Below that floor, the machine does not know a cat is there.

If you compare these machines on one number, compare them on this one. Here is what we could find published, converted to metric:

Model	Minimum detected weight	Upper limit
Litter-Robot 5 / 5 Pro	~0.9 kg (2 lb)	~13.6 kg (30 lb)
Litter-Robot 4	~1.4 kg (3 lb)	width-limited, no stated cap
Litter-Robot EVO	~1.4 kg (3 lb)	~8.6 kg (19 lb)
PetSafe ScoopFree	~1.4 kg (3 lb)	—
Neakasa M1	comfortable range ~1.8–8.2 kg (4–18 lb)	~15 kg total
PETKIT PuraMax 2	not found in published specs	—
CATLINK (all models)	not found in published specs	—
PetSnowy SNOW+	not found in published specs	—
Kopipets	not published — we do not know it	—

We want to be precise about that phrasing. "Not found in published specs" means we looked and could not find it, not that the manufacturer refuses to give it. Several of these will tell you if you email and ask, and you should.

The last row is different, and we are not going to dress it up. The minimum detection weight of the box we sell is not on our specification sheet, we have not measured it, and we cannot tell you what it is. We have asked our manufacturer for the figure in writing. When we get it, it goes on the product page whether it flatters us or not.

Litter-Robot publishes this number and we publish nothing. That is a real advantage they have over us, at roughly three times the price. If it is the thing that decides your purchase, it should decide it in their favour, and we would rather say so here than have you find out later.

Why the number matters

Most kittens at 8–12 weeks weigh under 1.4 kg. The safety guidance in this category is consistent: a kitten under about 3 lb is too light to register reliably, and should be using an ordinary shallow tray. Neakasa's own published guidance says 12 weeks and up, and explicitly not under 8 weeks.

So no automatic litter box is a kitten product. Not the S$280 one, not the S$1,700 one, and not ours. If you have a kitten, buy a cheap open tray and buy the machine when the cat is grown.

Three designs, and only one can fail this particular way

Rotating drum or globe

The whole chamber turns to sift. Quiet, well contained, and the design where — in some units — the entrance itself rotates away and closes during a cycle. If the sensors work, the cycle never starts with a cat inside. If they do not, the opening is gone.

This is documented, and it is worth being careful about how. The filmmaker Philip Bloom (One Man Five Cats) has spent years investigating it; the case most widely reported is a one-year-old Siamese named Mochi, whose owner says the machine closed on the cat's neck. Bloom's testing found weight, infrared and pinch sensors that did not initially work as intended, and that began working after a firmware update pushed through the app — which is its own problem, because most owners never open the app again after setup.

Three limits on that, stated plainly because we sell an open-top design and therefore benefit from this section:

The reporting on those cases did not name a manufacturer. There has been no recall and no regulator action that we can find. And the consensus in the safety coverage is that most documented injuries came from cheap unbranded units on generic marketplace listings rather than from established brands.

So the honest version is not "drums are dangerous." It is: a drum is the only architecture in which a sensor failure can produce a closed entrance. Litter-Robot builds a globe and has the clearest sensor disclosure in the category. An anonymous S$120 globe from a marketplace listing has identical physics and no disclosure at all. The design is not the risk. The design plus opacity is.

Open-top rake or sifter

The litter bed stays put; a rake or grate moves through it. The entrance is a permanent gap in the housing, so that specific failure is off the table by construction. Sensors still matter — a rake sweeping through a cat is its own problem, which is why pinch detection and reversal exist — but there is no mechanism that can close the door, because there is no door.

The trade: bulkier for the same litter area, usually louder, and less odour containment than a sealed drum. You are exchanging containment for an opening that cannot disappear.

Belt and conveyor types

Rarer, mechanically fiddlier, and we have not lived with one long enough to have a view worth publishing. We are leaving it out rather than padding the article.

The Singapore-specific problem: it has to fit

This is where half the internet's recommendations fall apart locally.

The Litter-Robot 5 Pro is roughly 76 cm tall by 73 cm wide. Go and measure the gap between your washing machine and the service yard wall. In a lot of HDB flats that machine simply does not go there, and the reviews that rank it first are written for American laundry rooms.

Three things to check against your actual space:

Sealed globes are tall. They need vertical clearance, and they need it in a corner a cat will still walk into. Open-top sifters are wide and low. They eat floor area but slide under a shelf. And every one of them needs a power point — service yards in older flats often have exactly one, and the washing machine is in it.

Measure first. It is the cheapest step in this whole process and the one most people skip.

The specification that quietly ruins these machines — and it is not the machine

A self-cleaning box sifts by dropping clean litter through a fixed grate. The hole size is set at the factory. The pellet has to be smaller than the hole.

Standard tofu cat litter — the default choice in Singapore — is extruded as sticks around 3 mm across. The range these machines are built for is 1.5–2.0 mm. Put 3 mm tofu into a sifting box and the sticks lodge in the grate; the machine then reads clean pellets as waste and dumps them into the bin. You will conclude the box is faulty. The box is fine. Nobody told you there was a right litter.

We sell a 1.5 mm tofu litter, so discount that accordingly — but the principle holds whoever you buy from: check the pellet size against the grate before you buy the litter, not after the machine starts eating it. Crystal litter and non-clumping litter are generally incompatible with rake designs.

We have written this up properly, with the cycle-delay and fill-depth settings that go with it, in Automatic Litter Boxes and Tofu Litter: What the Specifications Actually Decide. If you are about to buy either a machine or a sack of litter, read that one next. If you have not bought either yet, Choose the Litter Before the Litter Box is the order we think a first-time buyer should work in, and it does the arithmetic on how much litter one fill actually takes.

The bin number is quoted for one cat

Every listing quotes a bin volume and a number of days. PETKIT's 7 L is quoted at about 15 days. Ours says 15 L and about 15 days.

Read the small print on any of them and that figure is for one cat. Two cats roughly halves it. Three means emptying twice a week, which is most of the way back to scooping.

Before you believe any "hands-free for X days" claim — ours included — divide it by the number of cats you actually have. If the answer is under five days, the machine is buying you less than you think.

A buying checklist, in order

Measure the space and find the power point. Before anything else.
Kitten under about 1.5 kg? Not yet. Ordinary tray. Come back in a few months.
Ask the seller for the minimum detection weight. If they cannot produce it, you have learned how well they know their own product. You have learned it about us too.
Decide how you feel about an entrance that closes — and if a drum is fine by you, buy one from a brand that publishes its sensor behaviour.
Match the litter pellet size to the grate. 1.5–2.0 mm for sifting designs.
Set the cycle delay to 10–15 minutes and fill to at least 5 cm, and recalibrate the level sensor after any change of litter.
Open the app monthly and apply firmware updates. Free, and the highest-value safety habit in this category.
Divide the quoted bin days by your cat count.
Ask where the warranty is serviced. A local S$599 unit with parts in Singapore can beat an imported S$950 one the first time something breaks.

Where ours sits

The Kopipets Automatic Smart Cat Litter Box is S$280. It is an open-top sifting design, so the entrance is a permanent gap and cannot close during a cycle. 15 L bin, app control, six detection systems (infrared, radar, gravity, overload, anti-tip, obstacle), 548 × 561 × 439 mm with a 38.5 × 44 cm litter area, around 30–40 dB, 7.3 kg.

What we will not tell you is that it is the best machine in the table. It is a mid-priced open-top sifter with sensible geometry, sold by people in your time zone who will answer the phone, and it wants a 1.5–2.0 mm litter, which is what our tofu litter is. Litter-Robot is a better-documented machine and costs roughly three times as much here once it lands.

What we can tell you is what we would want to know as a buyer: the entrance is a permanent gap, the litter it wants is 1.5–2.0 mm, and we do not yet know its minimum detection weight. When we do, that number goes on the product page whether it flatters us or not.

What this survey concludes

There is no winner, and we would distrust any article in this category that handed you one.

What there is, is a market where price spans sixfold for one function, where the safety-critical specification is missing from most listings, and where the highest-profile recommendations are for machines that do not physically fit in the room most Singaporeans would put them in.

If you want the best-documented machine and the budget is there, that is Litter-Robot, imported, at roughly three times local pricing. If you want local warranty service on a sealed design, PETKIT has the strongest local footprint. If you want an open-top at the bottom of the market, CATLINK's Open-X and ours sit within S$5 of each other, and you should compare us on what each of us will tell you when you ask a hard question.

Ask us the hard question. We will tell you what we do not know, which today includes a number we would rather have.

Every Automatic Litter Box You Can Buy in Singapore — and the One Number Most Sellers Will Not Tell You

Before you read this: we sell one of these