Neakasa M1 Plus and M1 Lite Plus: Specs, Price, vs LR4

The Neakasa M1 is now sold in the U.S. as two open-top versions: the M1 Plus ($399.99 sale, $549.99 list) and the M1 Lite Plus ($379.99 sale, $499.99 list), at Neakasa’s U.S. store as of November 2, 2026. Neakasa rates both for cats from about 2.2 lb to “around 33 lbs.” Both have an 11.23 L waste bin that Neakasa says usually needs emptying about every 14 days for one cat. Neakasa’s own comparison table lists the same sensors and capacities for both. The differences are price, color and what comes in the box.

Neakasa M1 Plus and M1 Lite Plus specs

Spec	M1 Plus	M1 Lite Plus
Price (2026-11-02)	$399.99 sale / $549.99 list	$379.99 sale / $499.99 list
Design	Open top, rotating	Open top, rotating
Cat weight	“2.2 lbs - around 33 lbs”	“around 2.2 lbs” to “around 33 lbs”
Entry height	13.86”	13.86”
Waste bin	11.23 L (“Up to 14 Days”)	11.23 L (14 days)
Litter capacity	7.17 L	7.17 L
Sensors (Neakasa comparison table)	6 pairs infrared, 4 weight	6 pairs infrared, 4 weight
Machine weight	22.81 lb	22.81 lb
Dimensions	22.83” W x 19.69” D x 26.83” H	Not published
Noise	”≤ 50dB”	Not stated
App	Android and iOS	Android and iOS
Warranty	2-year limited	2-year limited
Returns	30-day return	30-day return

Neakasa’s store also has other M1 listings and bundles at different prices (for example, a $379.99 M1 Plus listing in the store’s product feed); the prices above are from the product pages Neakasa’s navigation links to. Some variants showed “Sold out” on the check date.

What’s different between Plus and Lite Plus

The “Choose the Perfect Model” table on Neakasa’s Lite Plus page lists these differences:

Item	M1 Lite Plus	M1 Plus
Color	Pearl White	Grey
Waste bags included	1 roll (15 pcs), “Value $10”	2 rolls (30 pcs), “Value $20”
Litter mat	“Not Include”	“Included, Value $30”

The same table lists identical sensors, odor control (“OdorSeal Technology”), entry height, litter capacity, waste bin capacity and weight for both. On the sale prices of the check date, the Plus cost $20 more and included the litter mat and an extra roll of bags.

Open-top design

Neakasa says the “open-top structure keeps the entrance open 24/7, preventing any chance of getting stuck.” There is no globe door or hood. Neakasa also describes a sealing strip on the waste bin for odor, and claims a “custom-fit sealing layer” that prevents “up to 95% of urine leaks.” Those are Neakasa’s claims. For how open-top and enclosed designs compare in general, see open-top vs enclosed.

Weight limits and kittens

Upper limit: Neakasa says the M1 “fits larger breeds like Maine Coons and Ragdolls,” up to around 33 lb. That is the highest stated limit among the models we track. See large cats.
Lower limit: Neakasa says kittens of 2.2 lb or more can use Automatic Cleaning mode.
Kitten Mode: below 2.2 lb, Neakasa recommends turning automatic cleaning off and using Kitten Mode. In that mode the box doesn’t clean itself. The Lite Plus page says to wait about 5 minutes after use, then press Clean.
Number of cats: Neakasa doesn’t give one. Its pages say the M1 is for “multi-cat households.” See multiple cats.

Litter type

Neakasa says the M1 “Works best with fast-clumping, scoopable litter” and “fast clumping mineral or bentonite clay.” It also gives the filter size: the filter “sifts particles up to 3 mm in diameter and 10 mm in length.” Neakasa lists these as not compatible:

highly absorbent litter
non-clumping litter
loosely clumping litter
newspaper litter
wood pellet litter

Neakasa makes no claim about litter savings on either page. For options, see litter for self-cleaning litter boxes.

Consumables

Waste bags: Neakasa sells replacement bags at $19.99 for 2 rolls (30 bags), about $0.67 per bag. Its FAQ also says “you can use any bag that fits in the waste drawer.”
Yearly bag cost: at Neakasa’s figure of about 14 days per bin for one cat, that works out to roughly 26 bags, or about $17 at the 30-bag price. More cats will mean more frequent emptying, and Neakasa gives no figure for that.
Filters: we found no filter or deodorizer refill listed as an M1 consumable on Neakasa’s product pages.

Run your own numbers, litter included, in the cost calculator.

App

M1 Plus page: “Track your cat’s daily usage, monitor health trends, and schedule cleanings.”
Lite Plus page: smart settings, litter-level monitoring, real-time monitoring, multi-cat recognition and remote control.

Usage logs are records, not a health check; ask a veterinarian about any concern.

Neakasa M1 vs Litter-Robot 4

Spec	Neakasa M1 Plus	Litter-Robot 4
Price (2026-11-02)	$399.99 sale / $549.99 list	$699 list
Design	Open top	Enclosed globe
Cat weight	2.2 to ~33 lb	3–25 lb
Cats claimed	Not stated	Up to 4
Waste	11.23 L, about 14 days (1 cat)	“as low as once every 8 days”
Footprint	22.83” x 19.69”	22” x 27”
Height	26.83”	29.5”
Litter	Fast-clumping clay/mineral	Clumping clay
Warranty	2-year limited	1 year included (3-year plan $129)
Trial / returns	30-day return	90-day in-home trial
Branded consumables	Bags $19.99 / 30	Liners $35 / 50; carbon filters $30 / 6, monthly

By spec, the M1 Plus has the higher weight limit, an open top, a smaller footprint, a lower sale price and a longer included warranty. The LR4 has a maker-stated cat count and a longer trial window. More on the Litter-Robot 4 and other Litter-Robot alternatives.

Bottom line

The Neakasa M1 Plus and M1 Lite Plus share the same core specs:

open-top design
cats from about 2.2 to around 33 lb
11.23 L waste bin
fast-clumping clay or mineral litter

On November 2, 2026, the Lite Plus cost $379.99 and the Plus $399.99 on sale. The Plus adds a litter mat, an extra roll of bags and a grey color. Compared with the Litter-Robot 4, both cost less on sale and accept heavier cats by Neakasa’s figures. Neakasa doesn’t state a cat count, and its return window is 30 days against Whisker’s 90-day trial.