Leo's Loo Too.

The Gavler Review.

Leo's Loo Too Review: The Quiet Globe With One Fixable Flaw

Leo's Loo Too holds rank two on our Best Automatic Litter Boxes list with a 9.0, and in the right household it's arguably the better machine than the rank-one Litter-Robot 4 — quieter, better-smelling, and built around a genuinely superior triple-sensor safety system. It also carries a specific, well-documented design flaw: Casa Leo positioned the power button directly beneath the cat entry, where urine can reach it, and the contacts corrode on a predictable schedule for cats that don't eliminate dead-center. Buy it if your cat is under about 15 pounds and a centered eliminator, and buy the extended warranty without hesitation. Skip it for a large cat, an elderly cat that sprays near the walls, or if quiet operation isn't your top priority — the Litter-Robot 4 is the safer default there.

What it actually is

Casa Leo (the company behind the Smarty Pear brand) builds Leo's Loo Too around the same core idea as its category rivals — a rotating globe sifts waste from clumping litter — but differentiates on three specific claims: a motor rated around 30 dB, a 9.5-liter sealed waste drawer treated with EPA-certified UV-C light after every visit, and a triple-layer safety stack combining proximity radar, four weight sensors accurate down to roughly 1 pound, and an anti-pinch sensor at the drawer lip. Official comfort rating tops out around 20 pounds, and the unit requires 100% clay-clumping litter — other litter types void the warranty and the 90-day return trial. Street price sits at $599.99 direct from Casa Leo, or $600 on Amazon.

The UV-C treatment is a real differentiator in this category — no other globe litter box at this price uses it — and it's the mechanism behind the product's strongest reviews. It's also, per the safety architecture, a genuinely more redundant system than the Litter-Robot 4's single weight sensor: radar detects a cat before any contact occurs, at all.

In use — the odor story checks out, the failure pattern is real

Where this product earns its rank-two spot is odor. One long-term owner, a work-from-home three-cat household with the box six feet from her desk, described the result simply: "Once it goes through a cleaning cycle (within minutes) the smell is gone." A YouTube reviewer running seven cats through a single unit in a full-time RV reported the machine "never bothered" the household despite constant use, and could "barely hear it if I'm standing right next to it." One side-by-side comparison video, run by a reviewer who purchased both the LR4 and Leo's Loo Too independently for a 34-minute head-to-head, found Leo's Loo Too winning on safety, noise, odor control, build quality, and smart-home integration — with the Litter-Robot 4 pulling ahead only on waste-drawer size and entrance width for larger cats.

The safety system backs up its billing, too: across 172 Amazon reviews, 487 YouTube comments, and every Reddit thread in one independent research dataset, there are zero confirmed cat injuries. That's the number that matters most for a product that literally rotates around a live animal.

But the same research that documents the strengths also documents a specific, recurring failure: Casa Leo's power button sits on the front face, directly below the cat entry, and urine from cats that eliminate near the entrance or against the drum wall drips into the housing and corrodes the contacts. One owner who chose Leo's Loo Too over the Litter-Robot specifically for its lower price described the exact sequence: "After a year, it stopped rotating and the button no longer lit up. Customer service sent me a replacement button free of charge... After taking the machine apart, I noticed how much urine had leaked through the cracks. 6 months later same issue... it's sadly going in the trash." That owner ultimately bought a Litter-Robot 4. Another owner, after three separate returns for the same issue, diagnosed the fix that Casa Leo has not implemented: "The on/off button should be moved off to the side and not directly under where the cat eliminates."

Strengths

• Best-in-class odor control. UV-C sterilization of the sealed drawer after every use is a genuine technical edge over carbon-filter-only competitors, confirmed repeatedly by long-term owners in shared living spaces.
• The quietest globe in the category. Independent measurements land around 40 to 45 dB — louder than Casa Leo's own 30 dB claim, but still the quietest tested unit in its class.
• A more redundant safety system than its closest rival. Radar plus four weight sensors plus an anti-pinch mechanism is a genuinely deeper stack than the Litter-Robot 4's single weight sensor, with zero confirmed injuries across a large independent review dataset.
• Alexa and Google Assistant integration, a feature the Litter-Robot 4 doesn't offer, useful for households already built around a voice-control smart home.

The trade-offs — who should skip it

• The power-button flaw is real and unfixed. It surfaces reliably around month 12 to 18 for cats that don't eliminate dead-center, and it has persisted across multiple product years without a hardware revision. Budget for the extended warranty, which functions as insurance against a known design issue rather than a generic upsell.
• It's not built for a large cat. Cats over roughly 15 pounds report a cramped interior, and Maine Coon or Ragdoll owners consistently flag fit problems — which also raises the odds of the urine-near-the-wall behavior that triggers the button failure.
• Clay-clumping litter only. Other litter types void both the warranty and the 90-day trial, a stricter requirement than most competitors.
• Deep cleaning is a genuine chore. The electronics base can't be hosed down without voiding the warranty, and owners describe using a toothbrush and paper towels to reach waste that accumulates in the sensor housings.

How it compares

One rank up, the Litter-Robot 4 trades Leo's Loo Too's odor and noise edge for a higher weight ceiling (25 pounds versus roughly 20), a wider entry, and three-plus years of accumulated reliability data backed by a much larger owner community. Both products carry a documented failure mode that surfaces in the same 12-to-18-month window — the LR4's is sensor and motor wear across roughly 15 to 20 percent of units, Leo's Loo Too's is the power-button corrosion issue — so neither is meaningfully more reliable than the other; they simply fail differently. If odor and quiet matter more than capacity, Leo's Loo Too is the better bet. If you have a large cat, multiple cats, or want the deeper support ecosystem, the LR4 is the safer default.

The Gavler verdict

A 9.0, built on a 91 expert consensus and an 88 community rating. Leo's Loo Too is the quiet, best-smelling choice for the right household — a smaller cat, one or two per home, and an owner willing to budget for the extended warranty against a known and specific hardware flaw. It is not the safer generalist pick; that's still the Litter-Robot 4. But for an apartment where odor and noise are the deciding factors, Leo's Loo Too earns its rank-two spot honestly.

Common Questions

Is Leo's Loo Too worth $600?

For a household with one or two cats under about 15 pounds that eliminate toward the center of the drum, yes — it ranks second on Gavler's Best Automatic Litter Boxes list with a 9.0, and independent testing confirms it's the quietest and best-smelling globe in its class thanks to UV-C sterilization and a triple-layer safety system. Budget for the extended warranty at checkout, though; without it, the real first-year cost is closer to $725 once you account for the failure pattern documented below.

What is the Leo's Loo Too power button problem?

Casa Leo placed the unit's power button and its wiring directly beneath the cat entry opening. When a cat urinates near the entrance or against the drum wall, urine drips into the button housing and corrodes the contacts, and the machine stops rotating — a failure pattern that independent research (analyzing 172 Amazon reviews across multiple product years) found surfaces consistently around month 12 to 18. It isn't a safety issue and Casa Leo's customer service will send a replacement button, but reviews describe the same failure recurring after the fix. It has not been corrected in the current hardware.

Leo's Loo Too vs Litter-Robot 4 — which is quieter?

Leo's Loo Too, by most independent measurements. Casa Leo's own motor claim is about 30 dB; hands-on testers have measured closer to 40 to 45 dB in practice, but that's still quieter than the Litter-Robot 4's already-quiet QuietSift motor by most side-by-side accounts, and Leo's Loo Too's UV-C-treated waste drawer edges out the LR4's carbon-filter approach on odor in the same comparisons. The trade-off is capacity: Leo's Loo Too tops out around 20 pounds and has a noticeably tighter interior, while the Litter-Robot 4 is rated for cats up to 25 pounds with a wider, taller entry.

Does Leo's Loo Too work for large cats?

Not reliably. Cats over about 15 pounds tend to have their heads sticking out of the drum during use, and Maine Coon and Ragdoll owners consistently report size issues in reviews. Large cats are also more likely to urinate near the drum walls rather than centered, which is precisely the behavior that triggers the power-button corrosion failure — so a large cat compounds both the fit problem and the reliability problem at once. The Litter-Robot 4, rated to 25 pounds, is the better choice for a big cat.