The catch
CATLINK Scooper Open-X
The space it needs for placement is bigger than the outline of the cabinet.
Side by side
Look first at how a cat gets in and where the box is going to sit. Each entrance is around 13.8 inches high. For two or three cats, the original M1 comes with clearer guidance, whereas the Open-X package selected here carries a Single-Cat label. Because the old original-M1 Amazon listing now names M1 Plus, its purchase button is held back until an exact match turns up.
Before you buy
The optional elevated fence for M1 may help when urine goes out the front, but it also makes the entrance higher. If one cat sprays forward and another has trouble climbing in, look at the box, fence and access aid as a package.
Where this comes from
Neakasa describes an elevated front barrier, yet it gives no verified final entry height and no measured containment percentage for high spray. The access trade-off depends on the conditions.
The catch
The space it needs for placement is bigger than the outline of the cabinet.
The catch
No confirmed Amazon link exists at the moment for the exact original model.


The original M1 purchase link is being rechecked. Its former Amazon listing now names M1 Plus.
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CATLINK Open-X next to Neakasa M1 on cat and entry fit, litter and waste system, and daily upkeep.
A small difference in advertised bin size can matter less to the decision than entry height, urine direction and floor placement.
Which one fits
Each documents an entrance of approximately 13.8 inches. Check access with whatever ramp you plan to use, and do not assume an open top means easy entry.
A separately listed elevated fence is available for Original M1. Weigh its containment benefit together with the higher step-over it requires.
Neither reviewed record shows that spray along that path is fully contained. Automatic scooping does not stop urine from getting out of the chamber.
Each needs firm, level placement. Support for Original M1 specifically warns against putting carpet or its mat under the machine.
Original M1 rules out tofu and any mixture containing it. The conflicting statements about Open-X need to be cleared up before compatibility is promised.
In practice
The optional elevated fence for M1 may help when urine goes out the front, but it also makes the entrance higher. If one cat sprays forward and another has trouble climbing in, look at the box, fence and access aid as a package.
Neakasa describes an elevated front barrier, yet it gives no verified final entry height and no measured containment percentage for high spray. The access trade-off depends on the conditions.
Add the stated six inches on each side and its 25.6 by 23.6-inch floor outline turns into a 37.6 by 35.6-inch planning rectangle. A usable ramp and drawer access may need more space.
Each footprint axis gets 12 inches added. The figure comes from CATLINK's stated clearance on all sides and is not a measured minimum cabinet opening. That envelope should not be carried over to M1.
The two-to-three-cat recommendation for Original M1 helps you judge sharing. It doesn't establish individual recognition, whether every cat accepts the box, or how long the drawer can go unchecked.
A recommendation on sharing comes from Neakasa's original household support. Individual behavior, litter and daily use fall outside that simple count of cats.

CATLINK, Open-X
An open-top automatic box with a roughly 13.8-inch entrance, sold here in the selected Single-Cat retail package. Check the exact litter instructions and app entitlement before you buy.

Neakasa, M1
This is the original open-top M1. The M1 Plus is a separate model. Support for the original recommends two or three cats and excludes tofu litter. Where to buy it right now is under review.
The original M1 purchase link is being rechecked. Its former Amazon listing now names M1 Plus.
Spec by spec
| Spec | CATLINK Scooper Open-X | Neakasa M1 | In practice |
|---|---|---|---|
| Entry height | 35 cm, about 13.8 inches | 35 cm, about 13.8 inches | Neither box becomes low-entry just because it has an open top. For a cat that struggles to climb, assess access before you choose. |
| Household guidance | Selected package labeled Single-Cat | Original support recommends two or three cats | Guidance on sharing and recognition of individual cats in the app are two different claims. Confirm exactly what Open-X entitles you to. |
| Litter compatibility | Confirm exact guidance because manufacturer statements conflict | Fast-clumping bentonite or mineral granules, no tofu mixtures | If you want to keep a preferred plant litter, original M1 may be out. Don't infer Open-X compatibility from a single conflicting headline. |
| Floor placement | Firm, level floor with stated clearances | A firm, level floor away from carpet and its litter mat | Placing a soft pad under the weighing feet can interfere with the intended setup. Follow the exact guide. |
| Original-M1 purchase match | Exact Open-X package remains identified | Former ASIN now names M1 Plus | The button for original M1 is held back. Plus specifications are not quietly swapped into this comparison. |
Trade-offs
Decision guide
Entry access and the spot where the box will stand come first. Both entrances are around 13.8 inches high. The original M1 has clearer guidance for two or three cats, while the Open-X package chosen here is labeled Single-Cat. Since the former original-M1 Amazon listing now names M1 Plus, no purchase button is shown until there is an exact match.
Each is an open-top rotating box, yet the entry access and the exact operating instructions still count. An open top does not settle how a cat will accept the box or how its sensors behave.
Support for the original M1 suggests two or three cats share it. The original manual gives an 11 L bin, which means the older 11.23 L catalog figure should not be used for a precise comparison of emptying.
A Single-Cat package is what the selected Open-X offer names. Confirm the app entitlement and the household guidance rather than reading that label as a proven physical limit on every Open-X version.
By the numbers
What we found across the automatic litter boxes we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| CATLINK Scooper Open-X |
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| Neakasa M1 |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Your home fits the Single-Cat package that was selected.
See price & reviews on Amazon
A replacement is under consideration, since you already have the original M1.
The original M1 purchase link is being rechecked. Its former Amazon listing now names M1 Plus.
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