Oneisall Ease S1
Open-top
- Days between emptying
- ~15 days, 1 cat
- Big-cat fit
- to 30 lb
- Running cost
- no required consumable
- ~$230
- 2.6–30 lb cats
- 11 L drawer
Best for: Large cats on a budget
CATLINK
For about $169 this is the cheapest open-top box listed, and one of the cheapest boxes of any kind. CATLINK sells it as a single-cat unit and a $199 multi-cat unit; the hardware is the same and multi-cat recognition is a $30 one-time unlock. The 12-litre drawer is rated for up to 15 days with one cat, and Kitten Mode turns automation off for cats under 6 months or 3.3 lb.
Approx. price
~$169
maker's store, not a live price
Best for: Large or hood-averse cats on a small budget
CATLINK says the sensor detects cats from 3.3 lb and sets a minimum age of 6 months. At the usual rate of about a pound a month, that means leaving automatic cleaning off until roughly 6 months. Below the threshold, a kitten may not register at all, and the box could start a cycle with it inside.
Detection: weight, infrared / radar. The maker states anti-pinch protection on the moving part, by sensor or by design.
How minimum weights work, and what to do below them12 L ÷ (cats × 0.7 L a day). The maker claims up to 15 days for one cat, within reach of the arithmetic. Where 0.7 L comes from.
The two lists above are drawn from the maker’s own pages, manuals and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.
The Open-X is the cheapest open-top box in the catalog, and owners who keep it mostly talk about the value: an open bowl like the Neakasa M1's for well under half the price, with no problems in the robot itself for some households.
The owner reports that stand out are about the moving bowl. One owner heard their cat cry after it tried to jump in mid-cycle and caught a back paw while the bowl was still turning; the owner lifted the cat out and switched to manual mode. Another said the unit cycled onto their hand during cleaning. CATLINK's reply to the first owner was to keep curious cats away from scheduled cycles or use manual mode. Other complaints include the height, a front lip that traps old litter, and phantom cat detection.
On a tight budget it works best with a calm cat and an owner who can schedule cycles for when the cat is out of the room. CATLINK does list anti-pinch sensing, but a cat that runs to investigate every cycle is safer with the box in manual mode or scheduled around it.
One owner reported their cat's paw being caught while the bowl turned when the cat tried to jump in mid-cycle. CATLINK advised manual mode or scheduling cycles for when you can supervise. Its incomplete gear keeps the top open, but owners of very curious cats keep automation off.
Owners find it sits high; one said only two of four cats used it and that the matching step costs extra.
Owners find the lip at the front makes it hard to get every bit out, so expect to scoop or tip out the last of it by hand.
Open-top
Best for: Large cats on a budget
Open-top
Best for: Large cats in a home that wants the M1 design for less
Open-top
Best for: Maine Coons and other large cats, or cats that avoid covered boxes