Best of 2027 / Open-top
Best open-top automatic litter boxes for 2027: the designs that cannot enclose your cat
Research updated November 10, 2026 / Clean Litter Lab notes
Open-top is the fastest-maturing design family in the 2027 catalog, and the reason is behavioral, not technical. A meaningful share of cats refuse enclosed boxes outright - the hood, the door, the sense of a trap. An open bed reads to a cat like the tray it already trusts, with the cleaning handled underneath. It is also the strongest safety geometry available: a design that cannot enclose a cat cannot trap one.
Four verified models make this list, from $169 to $570, and they differ mainly in how they seal odor and how much data they collect.
Disclosure: links on this page are Amazon affiliate links. If you buy through them, Clean Litter Lab earns a commission at no extra cost to you. Picks are never sold or sponsored. How that works.
The odor question, answered first
The standard objection to open-top is smell, and it was fair in 2023. The current designs answer it at the waste path rather than the bed: Neakasa seals the bin with a brush strip at the bed's base, CATLINK uses a triple-layer odor lock, and PETLIBRO runs a fan through a carbon deodorizer continuously. Owners of the Neakasa in particular report odor performance they did not expect from an open design. The bed itself stays clean because the cycle runs minutes after each visit.
Open-top picks at a glance
| Pick | Design | Position in the lab notes | Review |
|---|---|---|---|
 Neakasa M1 Plus | open top | The open-top benchmark: nothing encloses the cat, odor is sealed at the waste bin, and big cats up to 33 lb fit. | Read the notes |
 CATLINK Open-X | open top | The value open-top: a 12 L drawer, dual-band Wi-Fi and an always-open entrance at the lowest price of any drum here. | Read the notes |
 MeoWant 75L | open top | The budget open-top with a senior-friendly 6.8 inch entry and a 75 L bed that multi-cat homes can actually share. | Read the notes |
 PETLIBRO Luma | open top | The open-top with a camera brain: waste analysis and recognition for up to 10 cats, without enclosing anyone. | Check price on Amazon |
Entry 01 / Neakasa
ASIN B0CSKBWBF6
Neakasa M1 Plus Open-Top Automatic Litter Box
The open-top benchmark: nothing encloses the cat, odor is sealed at the waste bin, and big cats up to 33 lb fit.
Why it is on the list
- Open-top layout follows how cats naturally prefer to toilet - visible, escapable, no door to push through
- The brush-strip seal between bed and bin tackles open-top odor at the source instead of perfuming it
- Supports cats up to 33 lb, the widest weight range among the open-top models here
Recorded limitation
Open top means litter scatter is managed by the included mat, not eliminated
Safety note: Open-top bed that cannot trap a cat, gear structure limiting rotation angle plus a 6-array infrared system; kitten mode for cats under 3.3 lb.
Entry 02 / CATLINK
ASIN B0GD73F98D
CATLINK Open-X Self-Cleaning Litter Box
The value open-top: a 12 L drawer, dual-band Wi-Fi and an always-open entrance at the lowest price of any drum here.
Why it is on the list
- Dual-band Wi-Fi at this price is rare - pairing pain is the top complaint on 2.4 GHz-only rivals
- The always-open entrance is a mechanical property, not a sensor promise, which is the strongest kind of safety claim
- Top-fill litter loading and one-touch bag sealing are designed for owners with limited mobility
Recorded limitation
Positioned for a single cat; multi-cat homes will empty the drawer far more often than the 15-day figure
Safety note: Open top with an always-open entrance by incomplete-gear design, plus weight sensors, infrared sensors and anti-pinch switches per CATLINK.
Entry 03 / Meowant
ASIN B0D1QWZDKT
Meowant Self-Cleaning Litter Box 75L Open-Top
The budget open-top with a senior-friendly 6.8 inch entry and a 75 L bed that multi-cat homes can actually share.
Why it is on the list
- The 6.8 inch entry is the lowest of any drum here - arthritic and short-legged cats step in rather than climb
- Open-top acceptance with a genuinely large 75 L bed at a mid-budget price
- The mat must not go under the unit, and Meowant says so plainly - honest setup guidance that protects the weight sensors
Recorded limitation
The AIRPET app is a generic platform app, less polished than Whisker or PETKIT software
Safety note: Open-top bed with an integrated anti-pinch structure and 9 sensors for weight, motion-stop and abnormality alerts, per Meowant.
Entry 04 / PETLIBRO
ASIN B0GTM9P94B
PETLIBRO Luma Smart Litter Box
The open-top with a camera brain: waste analysis and recognition for up to 10 cats, without enclosing anyone.
Why it is on the list
- Camera waste analysis in an open-top body is a combination nobody else in this catalog offers
- Recognizes up to 10 cats, the highest multi-cat identification claim here
- Fan-driven carbon deodorizing runs continuously rather than only at cycle time
Recorded limitation
AI analysis and video recording sit behind a subscription, and SD cards are not supported
Safety note: Open-top with a multi-check system (visual, weight and infrared sensors) that pauses cleaning on detection; auto-clean off for cats under 2.2 lb.
The four open beds, side by side
Open-top odor: where it would live if the seals failed
Waste drawer seal. Odor escapes when the drawer is overfilled or the seal is dirty
Litter bed itself. Non-clumping or exhausted litter holds urine odor in the clean bed
Globe or drum liner. Urine scale builds on the liner and smells even when empty
Room airflow. A box in a sealed closet concentrates odor instead of dispersing it
Work the list top to bottom - most owners replace litter (source 2) when the real cause is the drawer seal or liner scale.
Questions owners actually ask
Do open-top boxes scatter more litter?
They can, because there is no hood to catch a vigorous digger's work. Every model here ships with or supports a mat, and the tracking guide on this site covers placement and mat strategy. Owners of enthusiastic diggers should weigh this honestly against the acceptance benefit.
Are open-top boxes safer than enclosed ones?
By geometry, yes for the trapping risk specifically: there is no enclosed space and no closing entrance. They still rotate a bed, which is why every pick here also documents its sensor and anti-pinch system.
Which open-top box fits the largest cats?
The Neakasa M1 Plus, rated to 33 lb. The MeoWant and Luma stop at 22 lb.
Which is best for a single cat on a budget?
The CATLINK Open-X at $169, with the caveat that its app recognition is happiest with one cat anyway.
Can an open-top box work in a bedroom?
The Open-X is manufacturer-rated at 30 dB and the MeoWant at 38 dB. Cycle noise is brief. The bigger bedroom question is the cat's own night visits, which no box can silence.
Spotted something out of date? The lab corrects the record in the open - see the contact and corrections page.