The Litter‑Robot 4 is widely considered the best self‑cleaning litter box on the market. During the Memorial Day sale, the accessory bundle is available for a record low price of $799,savingyou$799,savingyou60 off its normal $859 price. The bundle includes the robot itself, a litter‑trapping mat, three OdorTrap packs, 10 waste drawer liners, 30 cleaning wipes and two carbon filters. You can choose between white or black models at the same price. The deal is available at both Amazon and Best Buy.

What Is The Litter‑Robot 4 And How Does It Work?

The Litter‑Robot 4 is an automatic, self‑cleaning litter box designed for cat owners who want to eliminate daily scooping. It is manufactured by Whisker, an American company that assembles its products in Juneau, Wisconsin. The device can accommodate up to four cats and works with any clumping litter.

After a cat exits the globe, the robot waits a preset amount of time (you can adjust this in the app) before starting a cleaning cycle. The globe rotates slowly, allowing clean litter to pass through a grate while clumps remain trapped. The globe then continues rotating until the clumps drop into a sealed waste drawer below. Finally, it rotates back to its original position, leaving a fresh bed of clean litter for the next use.

The cleaning cycle is notably quiet and less likely to frighten timid cats. If a curious cat sticks its head inside during a cycle, advanced motion and weight sensors immediately pause the rotation for safety.

Key Features And Benefits

Odor control system

• The waste drawer is tightly sealed to trap smells.
• A carbon filter sits directly over the drawer to absorb odors.
• Optional OdorTrap packs can be added for enhanced odor neutralisation.
• Many owners report they can place the unit in a main living area without noticeable smells.

Whisker app connectivity

• The app tracks litter levels and waste drawer fullness.
• It records each cat‘s weight and litter box usage over time.
• You can adjust cycle wait times, enable sleep mode and activate the night light remotely.
• The app sends notifications when the waste drawer needs emptying or litter needs refilling.
• Multiple Litter‑Robot units can be linked to a single account.

Quiet operation and safety features

• The rotation mechanism is significantly quieter than previous models.
• Motion and weight sensors stop the cycle instantly if a cat enters.
• The globe has an interior night light that automatically turns on in low light to help senior cats see.

Larger entryway and better accessibility

• The opening measures 15.75 inches wide, compared to 10.25 inches on the Litter‑Robot 3.
• This wider entry is more inviting for large cats and easier for seniors or arthritic cats to enter.
• A removable step at the base helps trap litter and assists cats getting in and out.
• A ramp accessory will be available later in the year for cats needing extra help.

Easy maintenance

• The globe, waste drawer and step are easy to clean with mild soap and water.
• The waste drawer accepts standard plastic liners (no proprietary bags required).
• A detachable guard at the base prevents litter from spilling out.

Litter‑Robot 4 Vs Traditional Litter Box

Time saved – Instead of scooping multiple times per day, you only need to empty the waste drawer every few days (or weekly, depending on how many cats you have).

Consistent cleanliness – Your cat always has a fresh bed of clean litter, which can reduce accidents outside the box.

Odor reduction – The sealed drawer and carbon filter trap smells far better than an open litter tray.

Health monitoring – The app tracks weight changes and usage patterns, helping you spot potential health issues early.

Upfront cost – The Litter‑Robot 4 requires a significant initial investment, while a basic litter box costs very little.

Pros And Cons Of The Litter‑Robot 4

Pros

• No daily scooping; the robot handles waste automatically after each use.
• Effective odor control with a sealed drawer, carbon filter and optional OdorTrap packs.
• Whisker app tracks litter levels, waste drawer fullness, cat weight and usage history.
• Quiet operation that won‘t startle timid cats.
• Safety sensors stop the cycle instantly if a cat enters.
• Wider 15.75‑inch entry accommodates large and senior cats.
• Works with up to four cats.
• 90‑day in‑home trial period: if your cat refuses to use it, you can return it for a refund.
• One‑year warranty included (extended warranty available for purchase).
• Uses standard clumping litter and any plastic liners (no proprietary accessories required).

Cons

• Expensive even at the discounted price of $799.
• Requires clumping litter; non‑clumping litter will not work.
• Cats must weigh at least 3 pounds for the sensors to detect them (tiny kittens cannot use it).
• Very large breeds like Maine Coons may not fit comfortably inside.
• Some owners report that cats who pee high on the wall can cause waste to seep between globe layers, creating a persistent odour.
• The unit is large and may not suit very small apartments.

What Cat Owners Are Saying

Reviews from real users are generally very positive, with the Litter‑Robot 4 earning high marks for convenience and build quality. One multi‑cat owner with five cats noted that all of them adjusted quickly and phased out using traditional trays. Another reviewer appreciated that the interior night light helped their senior cat find the box at night.

However, negative experiences exist. A small number of owners report that their cat refused to use the robot despite the 90‑day trial period. Others mention that very large cats have trouble fitting inside, and one reviewer returned the unit because a cat‘s high urination caused waste to seep between the globe layers, creating an unbearable smell.

On Trustpilot, Litter‑Robot has a mixed rating. Some customers report excellent experiences, while others complain about technical issues or poor customer service.

Frequently Asked Questions (FAQs)

What if my cat refuses to use the Litter‑Robot 4?
Whisker offers a 90‑day in‑home trial period. If your cat will not use the box, you can clean it, repack it in the original packaging and return it for a refund.

Does the Litter‑Robot 4 work with non‑clumping litter?
No. The cleaning mechanism relies on clumping litter to separate waste from clean litter. Non‑clumping litter will not work and can damage the unit.