Neakasa
About $50 under the M1 Plus, the Lite Plus keeps the open top, the 11.23-litre bin and the 2.2-to-33 lb rating. What it gives up, going by Neakasa's own copy, is one infrared set (five pairs rather than six sweeping sets) and the active air circulation. There is a gradual cleaning mode meant not to startle a nervous cat.
Approx. price
~$329
maker's store, not a live price
Best for: Large cats in a home that wants the M1 design for less
Neakasa says the sensor detects cats from 2.2 lb. At the usual rate of about a pound a month, that means leaving automatic cleaning off until roughly 3 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 them11.23 L ÷ (cats × 0.7 L a day). The maker claims up to 14 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 M1 Lite Plus is the M1's open-top chamber and app at a lower price, and owners mostly treat it as exactly that. The strongest endorsements come from people who moved from Litter-Robot 3s and found cleaning dramatically easier.
The differences owners notice are small but real. Comparisons with the full M1 point to the missing waste-bin door and passive odour control. The app has options that confuse new owners, such as a setting that lets a cycle finish if the cat climbs back in and auto-levelling that still runs in Kitten mode. Model naming varies by market, and one European buyer's unit had fewer sensors than the current listing.
As a second litter station, or for a budget buyer who wants the M1's open design, it makes sense. Owners in small rooms who are sensitive to smell tend to prefer the full M1 Plus or an enclosed drum. Neakasa's 2025 firmware safety notice names the M1 without listing variants, so check that the firmware is current during setup.
Owners point to the waste-bin door on the full M1, which the Lite lacks, and to accessories: the full M1 ships with more bags and a litter mat. Neakasa lists five infrared sensor pairs on the Lite and six sets on the Plus.
Owners understand it as letting the cycle finish if the cat jumps in after the chamber has passed a safe angle, rather than stopping mid-rotation. Some use it for cats that return immediately; others prefer to leave it off.
Kitten mode stops automatic cleaning, but auto-levelling is a separate setting and a firmware update can also make the chamber rock. Turn off auto-levelling if you want no movement at all.
One new owner filled to the top line and lost much of the clean litter into the bin on the first cycle. Starting at a lower fill and topping up after the first few cycles helps.
Open-top
Best for: Maine Coons and other large cats, or cats that avoid covered boxes
Open-top
Best for: Large-breed households that want an open box
Open-top
Best for: Large cats on a budget