Greesum Enclosed Self-Cleaning Cat Litter Box Review
A look at the Greesum enclosed self cleaning litter box: the 90L globe, triple sensors, app control, and who it actually fits.
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Quick Verdict
A 90-liter sealed globe that claims to keep 98% of litter off your floors, runs at 40dB, and skips the monthly subscription entirely, all while maintaining an enclosed self that protects against mess and noise. Skip this if you have a small bathroom or a nervous cat that needs time to adjust to enclosed spaces. Buy it if you’re vacuuming litter dust twice a day and your cat tolerates privacy.
Buy if you:
- Have a shy or rescue cat that avoids open, exposed boxes
- Are done scooping and want app alerts instead of guesswork
- Own a bigger breed (Maine Coon, Ragdoll) up to 33 lbs
- Refuse to pay a monthly app subscription just to use your own litter box
Skip if you:
- Have tight floor space, the 90L globe takes up a real footprint
- Own a kitten or a nervous cat that won’t step into an enclosed drum yet
- Want something you can grab and clean by hand in ten seconds instead of managing a bag and drawer
| Capacity | 90L enclosed globe |
|---|---|
| Cat weight limit | Up to 33 lbs |
| Waste drawer | 6.5L sealed, ~7 days for 2 cats |
| Noise | 40 dB operation |
| Connectivity | 2.4GHz WiFi app, no subscription |
| Warranty | 12 months |
What Your Enclosed Self Doesn’t Have to Pay
No subscription. That’s the line that makes this enclosed self cleaning litter box interesting before you even talk about the globe or the sensors. A lot of the popular smart boxes lock the good app features behind a monthly fee, and Greesum just doesn’t. The 2.4GHz WiFi app, the usage tracking, the full-drawer alerts, the remote cleaning trigger, all of it is included for the life of the unit. As two occupational therapists who spend a lot of time thinking about how much friction a product adds to daily life, I pay attention to hidden costs, and this one keeps things simple. You can check the current price and availability on Amazon here if you want to see where it lands against the subscription boxes.
The promise of any automatic box is that it removes a daily decision entirely, no scoop, no check, no guilt about skipping a morning. Whether the hardware on this one actually delivers that is the rest of this review.
What’s Inside the 90-Liter Globe
It’s a fully enclosed, globe-shaped drum rated at 90 liters. That sealed shape is the whole design logic. Open-top boxes fling litter roughly three feet in every direction when a cat digs, and this globe traps a claimed 98% of that inside. It fits cats up to 33 lbs, which covers the big breeds most self-cleaning boxes quietly exclude, plus multi-cat homes.
The safety story is three separate sensors rather than one. An infrared sensor detects your cat entering and pauses the cycle, and it’s the same sensor that flags a full waste drawer. A microwave radar stops all motion the instant your cat touches the entrance. And a living-creature radar scans inside the drum itself, locking rotation if it senses anything alive. Three independent systems is more redundancy than a lot of boxes in this price range offer.
40dB and a Drawer That Runs a Week
The two numbers that matter most day to day are 40 decibels and 6.5 liters. Forty dB is quieter than a normal conversation, which is the difference between a box a skittish cat tolerates and one that sends it bolting out of the room every cycle. For anxious or rescue cats, sudden motor noise is a real reason they stop using a self-cleaning box, so a quiet motor isn’t a luxury feature, it’s the thing that keeps the box in service.
The 6.5L sealed waste drawer is rated to hold about 7 days of waste for two cats. That’s the maintenance rhythm you’re signing up for: swap one bag roughly weekly, and the app tells you when. You’re trading a daily scoop for a weekly bag change. Add in the three cleaning modes, Auto, Scheduled, and Manual, and you can tune how often it cycles based on how many cats are using it. The control panel on the unit works on its own too, so if your WiFi drops or you never connect the app, the box still runs.
The Footprint Is Large, Plan Your Space Accordingly
Ninety liters is a lot of globe. That capacity is useful for big cats and multi-cat homes, but it also means this isn’t a unit you tuck discreetly into a corner of a small apartment bathroom. The enclosed shape that keeps litter contained is also a large object that needs real floor space, and that’s the trade-off the marketing bullets glide right past. Before you buy, measure the spot you actually plan to put it, not the spot you’re hoping it’ll fit.
The other thing worth a heads up: an enclosed drum is a new environment for a cat. Some cats step right in, but a nervous or older cat may need a transition period before they trust an automatic box that moves. That’s not a defect, it’s cat psychology, and it’s the part that catches people who expect plug-and-done on day one.
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Greesum Enclosed Self-Cleaning Litter Box
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Who This Box Actually Fits
Two households come to mind. The first is the person drowning in litter dust, the one vacuuming a grey ring around the box every day and still finding grit across the floor. The 98% containment claim and the sealed globe are aimed squarely at you. The second is the anxious-cat household: a rescue, a former stray, a shy cat that won’t touch an exposed box. The privacy of the enclosure plus a 40dB motor is the combination that gets that cat using its box consistently again.
It also fits people with big cats. A 33 lb weight ceiling covers Maine Coons and Ragdolls that a lot of self-cleaning boxes physically can’t handle. And if you’ve been avoiding smart boxes purely because of subscription fees, this one removes that objection entirely.
How It Compares to a Subscription Smart Box
The obvious cross-shop is a subscription smart box, think Litter-Robot tier pricing plus a recurring app fee that compounds every year you own it. Those boxes have more mature software and a longer field record. That edge is real, but you’re paying for it twice: once at checkout and once every month after.
Where the Greesum pulls ahead is total cost over time and the sensor redundancy. No subscription means the price you pay is the price, full stop, and three independent safety systems is competitive with boxes that cost more. If your priority is a lower long-run cost and a big enclosed drum for a big cat, this leans in your favor. If your priority is the most mature app on the market, the premium subscription boxes still have the edge.
Advice Before You Set It Up
Setup is fast, about 3 minutes to assembly, then plug in, add litter, and you’re done. But the two things that actually determine whether this works long-term happen before you power it on: leave the box unpowered for a day or two so your cat explores it on their own terms, and position it with enough wall clearance for the globe to rotate freely. Both are easy to skip and both matter.
Connect the app even if you think you won’t use it. The full-drawer push notification is the feature that turns weekly maintenance into a ten-second bag swap instead of a guessing game. You can check today’s price on Amazon here before you commit.
Pros
- No subscription, ever, app features included for the life of the unit
- Sealed 90L globe designed to keep 98% of litter off your floors
- Three independent safety sensors (infrared, microwave radar, living-creature radar)
- 40dB operation that won’t spook nervous cats
- Handles cats up to 33 lbs, works for big breeds and multi-cat homes
- Control panel works without WiFi, plus a 12-month warranty and bags/mat included
Cons
- The 90L globe has a large footprint, tough in small spaces
- Nervous or older cats may need a transition period before trusting it
- Premium subscription boxes still offer more polished, longer-proven apps
What we’d improve
Two things the next version could tighten up:
- Published exact dimensions on the listing, 90 liters tells you volume, not floor footprint. A clear width and height spec would save buyers the guesswork before it arrives.
- A quick-start litter transition guide in the box, since cat acceptance is the number one reason automatic boxes get returned, a simple acclimation card would help first-time buyers set it up for success.
Frequently Asked Questions
Does the Greesum litter box need a subscription to work?
No. Every app feature, including usage tracking, full-drawer alerts, and remote cleaning, is included for the life of the device with no monthly fee. That’s one of the main reasons it stands out against the bigger smart-box brands.
Does it need WiFi to run?
No, the control panel on the unit works independently. WiFi (2.4GHz) unlocks the app, alerts, and remote features, but if your internet drops or you never connect, the box still cleans on its own.
What size cat can use it?
It’s rated for cats up to 33 lbs, which covers big breeds like Maine Coons and Ragdolls. The 90L enclosed globe also gives multi-cat households room, so several cats can share it.
How often do I empty the waste drawer?
About once a week for two cats. The 6.5L sealed drawer holds roughly 7 days of waste, and the app pushes a notification when it’s full so you’re not guessing. The swap itself takes about ten seconds.
Is it safe if my cat climbs in mid-cycle?
Yes, that’s what the three sensors are for. Infrared detects entry and pauses the cycle, microwave radar stops motion the instant your cat touches the entrance, and a living-creature radar locks the drum if it senses anything alive inside. Three independent systems back each other up.
Will it wake me up at night?
Unlikely. It operates at 40 decibels, quieter than a normal conversation, so a 3 AM cleaning cycle shouldn’t wake the house or startle a skittish cat out of the room.
What kind of litter should I use?
Most enclosed self-cleaning boxes like this are designed around clumping clay litter, since the cycle sifts clumps into the drawer. Check the included instructions for the recommended type before you fill it, and avoid non-clumping or crystal litters unless the manual clears them.
How long does assembly take?
Around 3 minutes per the listing. You assemble, plug in, add litter, and it’s ready. The trickier part isn’t the hardware, it’s giving your cat a day or two to get comfortable with a box that moves.
Is there a warranty?
Yes, it comes with a 12-month warranty. It also ships with a litter mat and 30 waste bags, so you’re set for the first several weeks without an extra order.
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Get it now
Greesum Enclosed Self-Cleaning Litter Box
Get the best price on Amazon βAs an Amazon Associate I earn from qualifying purchases. Some links on this site are affiliate links, if you buy though them I may make a commission at no extra cost to you.
