10 Best Automatic Cat Litter Boxes 2026 in the United States

The Litter-Robot 4 Supply & Accessory Bundle is a well-rounded automatic cat litter box designed to make cat care easier, especially for households with multiple cats (up to four). Its medium size (27 x 24.25 x 29.5 inches) and weight (24 pounds) mean it will need a decent amount of floor space but offers a roomy interior for cats. The standout feature is its patented self-cleaning mechanism that automatically sifts waste from clean litter, so you don’t have to scoop manually—just empty the waste drawer when full. This model works with any clumping litter, providing flexibility.

Odor control is addressed through OdorTrap Packs and carbon filters included in the bundle, along with a LitterTrap mat and ramp that help reduce litter tracking around your home. Many users find this combination effective at keeping smells and mess minimal. Maintenance is straightforward, supported by included liners and cleaning wipes, and the smart app lets you monitor litter and waste levels remotely, plus track your cat’s weight, which is a unique health benefit.

The unit requires a flat, firm surface for the built-in weight scale to function accurately and is designed to be quiet, although some noise during cleaning cycles is normal. It’s powered by electricity, so you’ll need a nearby outlet. While it’s great for multi-cat homes and busy pet owners, the size and price might be less ideal for small spaces or those on a tight budget. Also, very small cats under 3 lbs may not be compatible with its automatic mode. This bundle delivers a comprehensive, user-friendly solution for controlling mess and odor while reducing daily litter box chores.

The Neakasa M1 Open-Top Self Cleaning Cat Litter Box is designed with both cats and their owners in mind. One of its standout features is the spacious open-top design, which allows easy access for cats of all sizes and encourages natural behavior.

With a large waste capacity of 11.23L and litter capacity of 7.17L, this litter box can comfortably handle the needs of multiple cats for up to 14 days, making it ideal for busy pet parents or those who travel frequently.

The self-cleaning mechanism is another major highlight. It effectively automates the upkeep process, minimizing the need for manual scooping and ensuring a fresher environment.

The Litter-Robot 3 Connect is a medium-sized automatic cat litter box that stands out for its effective self-cleaning system. It uses a patented sifting process that separates waste from clean litter, so you only need to empty the waste drawer occasionally, which makes daily scooping unnecessary. It supports almost any clumping litter, offering flexibility for your cat's preferences. The unit measures about 24 by 27 by 29.5 inches and weighs 24 pounds, making it sturdy but not too heavy to move when needed. Its design suits households with up to four cats, provided each weighs at least 5 pounds.

It features a carbon filter and automatic cleansing cycles that help reduce odors better than traditional boxes, keeping the area fresher. You can monitor and control the box remotely using the Whisker app, receiving notifications when the waste drawer is full and tracking your cat’s litter habits, which is a handy feature for busy owners or those with multiple cats. The noise level is generally low during operation, so it won't disturb your home environment. Maintenance is straightforward, mainly involving emptying the drawer and occasional cleaning. It runs on a power source (plug-in), so placement near an outlet is necessary.

Some users have noted the size means it requires sufficient space and that it shouldn’t be placed against walls or corners. The Litter-Robot 3 Connect represents a reliable choice for cat owners seeking convenience, odor control, and smart monitoring in an automatic litter box, though it may need a dedicated space and regular power access.