Casa Leo Leo's Loo Too vs PETKIT Purobot Max Pro

Buy Leo’s Loo Too if the machine has to live somewhere quiet and you want odor sealed and actively treated — about 30 dB, UV-C in a closed drawer, and a warranty you can extend. Buy the PETKIT Purobot Max Pro if you want the bigger bin, a published running cost and genuine multi-cat identification, at a lower price. Both publish far more than Whisker does; the interesting part is that the holes in their spec sheets are in different places.

The spec sheets do not line up

Every other automatic-box comparison in this hub has a Litter-Robot on one side of it, and the recurring complaint is the same: Whisker publishes no capacity figure at all. These two both do publish, which ought to make the comparison easy. It does not, because they publish different quantities with different gaps around them.

Casa Leo publishes a noise figure, a sensor count, an odor mechanism and a warranty, and no power rating you can cost. PETKIT publishes a wattage, a waste volume with a day-count behind it and a full camera specification, and no warranty term and no entrance height. Neither publishes an entry height, which is the figure that matters most for an older cat.

So this is not a case of one maker being more honest than the other. It is a case of deciding which blanks you can live with.

What the two publish

The 76 liter number is not litter

If you put these two sheets side by side, the first thing you see is 76 L against 1.5 gallons, and the obvious conclusion is that the PETKIT holds something like thirteen times the litter. That conclusion is wrong, and it is worth being precise about why.

Noise, where Casa Leo wins the only way it can be won

Casa Leo publishes about 30 dB. PETKIT publishes 35 dB. Both are manufacturer claims with no stated measurement distance or method, which is the normal state of this category — and it is still more than Whisker offers, which is no decibel figure for the Litter-Robot 4 at all.

Five decibels sounds like a rounding error and is not. The decibel scale is logarithmic, so a 5 dB difference is a meaningful step in sound pressure rather than a sliver. If the box has to share a wall with a bedroom or sit in a studio flat, Casa Leo has the better published number and it is the right tie-breaker.

Two cautions, both of which cut against reading too much into it. An unpublished number is not the same as a loud machine, and neither of these figures tells you the one thing that actually wakes people up, which is the character of the noise rather than its level — a motor whirr at 35 dB and litter clattering through a sifter at 30 dB are not the same experience.

Where the cat rules both of them out

Casa Leo publishes cats up to 20 lb. PETKIT publishes 3.3 to 22 lb, and adds that kittens under 1.5 kg or younger than six months are not recommended — a more careful statement than most makers offer, and a more restrictive one.

The PETKIT therefore has about two pounds more headroom, which is a real difference only if your cat sits in that two-pound band. The more useful conclusion is the one neither maker wants you to draw: if your cat is over about twenty pounds, this comparison is the wrong one. Our large-cat page ranks the category on that figure, and the answers there are the Litter-Robot 4 at a published 3 to 25 lb and the open-topped Neakasa M1 at 2.2 to 33 lb.

At the small end Casa Leo is the more accommodating of the two on the retail listing, which claims automatic features from around a pound or two of kitten against PETKIT’s 3.3 lb floor. For a genuinely small kitten neither is the right first box, and our kitten box page explains why a low open pan comes first.

Running cost, and an honest blank

Footprint, height and the room

Odor, and the camera question

The two odor systems are built on different ideas. Casa Leo pairs a sealed waste drawer with a bamboo carbon filter and a UV-C lamp, which is the only ultraviolet treatment on any box on this site. PETKIT runs three stages — a sealed bin, an Odor Eliminator N50 2.0 cartridge and a Breezy Smart eliminator. Both seal the waste; Casa Leo treats it and PETKIT scrubs the air around it.

Neither maker publishes a measured odor result, because nobody in this category does. What you can compare is consumables: a bamboo carbon filter is a cheap standard part, where PETKIT’s eliminator cartridges are proprietary. Over three years that difference is more predictable than any claim about freshness.

The camera is the real asymmetry. PETKIT publishes 1080p, a 210-degree field of view, IPX5 and one-way audio, and combines weight with facial-feature recognition. In a multi-cat house the useful function is identification — which cat used the box, how often, for how long — and that is genuinely hard information to get any other way, because Leo’s four weight sensors cannot separate two ten-pound cats however accurate they are.

Two things to be clear about. PETKIT positions its stool and behavior analysis as pre-screening, not diagnosis, and that framing is correct: a flag is a reason to telephone a vet, and the Cornell Feline Health Center is the place to read what litter box changes can mean. And this is a camera in whatever room your litter box lives in, which is a decision about your household rather than your cat. Casa Leo offers no equivalent feature and no equivalent question.

The two machines

Casa Leo’s Leo’s Loo Too is the one to buy when the box has to be unobtrusive. About 30 dB is the better published noise figure of the two, the sealed drawer with UV-C and a bamboo carbon filter is the most thorough odor treatment here, the four weight sensors come with a published accuracy of plus or minus 1 lb, and it is the only one of the pair with a stated warranty — one year, extendable to three. The honest cons: it is the taller machine by 3.9 inches and the closest of any box here to blocking a countertop; Casa Leo publishes no waste drawer volume at all, so the 1.5 gallon figure everyone quotes is a retailer number; there is no wattage, so its running cost cannot be computed; the published cat ceiling is 20 lb; and it is the dearer of the two at current prices.

The PETKIT Purobot Max Pro is the one to buy for capacity, data and a documented running cost. The 8 L bin is about 40 percent larger than the figure quoted for Leo’s drawer and comes with a 17-day single-cat claim attached, the camera does multi-cat identification that weight sensing cannot, the 24 W rating means you can actually cost a year of electricity, and it is both shorter and cheaper. The honest cons: PETKIT publishes no warranty term for this model and no entrance height, both of which the discontinued Purobot Ultra did publish; 35 dB is the louder of the two published figures; 24 W is the highest published rating of any automatic box on this site; its odor cartridges are proprietary where Leo’s filter is generic; and a camera with audio in the litter box room is a privacy decision rather than a feature.

Deciding in one minute

1. Weigh the cat. Over about 20 lb and neither of these is your machine — both makers have said so themselves. Go to the large-cat page.
2. Measure the height above the spot. 27.6 inches against 23.74 is the difference between fitting under a counter and not.
3. Decide about the camera. Several similar-weight cats makes it the single most useful thing on either sheet; a shared bathroom may make it unwelcome.
4. Check what is on the other side of the wall. A bedroom makes Casa Leo’s 30 dB the number that matters most.
5. Count the emptying trips. 8 L against about 5.7 L is roughly 40 percent fewer, and that is the chore an automatic box leaves you.

See the category

Our automatic litter box roundup ranks the whole field, and the other head-to-heads cover the Whisker comparisons: Litter-Robot 4 against Leo’s Loo Too, Litter-Robot 4 against the Purobot Max Pro and the Neakasa M1 against Leo’s. If the running cost is what you are really weighing, the worth-it page argues the case against buying either.