Fumoi M4 Automatic Self-Cleaning Litter Box

The Fumoi M4 is an automatic self-cleaning litter box with app control, infrared safety sensors and a removable washable tray. Its listed 86L capacity and 15L waste compartment are intended for multi-cat households, but the listing's overall dimensions are inconsistent, so confirm fit before buying.

At a glance

App controls cleaning cycles and settings, shows usage records and provides waste-bin reminders. Physical buttons are also available.
The manufacturer says sensors pause operation when a cat approaches.
A removable washable tray supports routine cleaning. The listing recommends a flat surface, avoiding overfilling, and cleaning sensors regularly.
A sealed waste drawer and enclosed design are described as helping control odor. The product is also described as operating quietly.

Price

$189.98Save 17%

Reference price: ~~$229.99~~

Price checked: Nov 12, 2026

View offer

Pros and cons

Pros

App and physical-button controls provide two ways to operate the unit.
The stated 86L drum and 15L waste compartment are intended to reduce frequent emptying in multi-cat homes.
The washable tray is removable for cleaning.

Cons

Its listed weight is 35 pounds, so moving it may take more effort than a lighter litter box.

Technical specifications

13 specifications

Identity
Brand	Fumoi
Model	M4
Type	Automated Self-Cleaning Litter Box
Pet type	Cat

Size and construction
Weight listed	35 pounds
Material listed	Acrylonitrile Butadiene Styrene (ABS)
Color	White
Size	Large
Litter capacity	86L
Waste compartment capacity	15L

Controls and features
Wireless connection	2.4GHz WiFi
Safety sensors	built-in infrared safety sensors
Tray	removable washable tray

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: one dimension entry gives 23"L x 22.99"W x 20"H while another gives 23 x 22.99 x 20 inches; 35 pounds. The title mentions a washable tray, while a feature description also calls it a washable waterproof pad. A highlight mentions two rolls of garbage bags and grey, while the color field says White and the explicit contents list does not include bags. Confirm the selected listing's dimensions, color, tray or pad details and bundle before buying. The manufacturer says to use a flat surface, avoid overfilling litter and clean sensors regularly. Nervous or older cats may need time to adjust, and the opening should suit the cat.

What’s in the box

Deodorant boxIncluded
Self-cleaning litter boxIncluded
User manualIncluded
Two rolls of garbage bagsCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Multi-cat households wanting automatic waste separation and a larger stated waste compartment.
Owners who want app monitoring and controls alongside physical buttons.
Buyers able to accommodate a 35-pound unit and check its fit against the conflicting dimension details.

Less suited to

Buyers who need confirmed exact dimensions or a verified color and accessories bundle before ordering.
Cats that cannot comfortably enter the unit opening, unless its fit has been confirmed.

Fumoi M4 Automatic Self-Cleaning Litter Box · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 505 ratings

5 stars76%76%
4 stars10%10%
3 stars4%4%
2 stars1%1%
1 star9%9%

Customer feedback describes the box as easy to assemble and use, with positive comments on fit, cleaning and perceived value. Experiences with size, odor control and durability are mixed. For buyers considering a multi-cat setup, these reports make room around the listed unit, waste-drawer cleaning and expectations for odor control worth weighing. The supplied ratings lean strongly toward five stars, but aggregate ratings do not explain individual experiences.

Positive themes

Customers describe assembly and use as easy.
Some customers praise the fit and cleaning operation, and report that the box works well in small bathrooms.

Mixed feedback

Some customers say it is roomy without using too much space, while others find it too large externally.
Reports of odor control differ, with some saying odors are contained and others noting urine smells.
Durability impressions differ, with reports of stability alongside reports that it is not very durable.

Frequently asked questions

Can the Fumoi M4 be controlled without the app?

Yes. The listing says it has physical buttons as well as app controls.

What Wi-Fi does the app connection require?

The listing specifies 2.4GHz WiFi. It also says the app needs location and Bluetooth permissions to discover the device during setup.

What should I verify before choosing a spot for the M4?

The listed dimensions conflict, so confirm the selected listing's measurements and allow for a 35-pound unit. The manufacturer recommends placing it on a flat surface.

Does the package include garbage bags?

The explicit contents list names a deodorant box, the litter box and a user manual. A separate highlight mentions two rolls of garbage bags, so confirm the selected listing's bundle.