Litter Robot 3 vs Litter Robot 4: The Battle of the Automated Litter Boxes

Discover the key differences between Litter Box 3 and Litter Box 4. Our comprehensive image guide helps you choose the best option for your feline friend.

When it comes to making life easier for cat owners, the Litter Robot 3 and Litter Robot 4 self-cleaning litter boxes have been revolutionary. Both models promise to eliminate the need for scooping litter, but with the new Litter-Robot 4 on the scene, it’s time to compare these two models in depth. In this blog post, we’re going to dive deep into the features, pros, and cons of both the Litter Robot 3 and the Litter-Robot 4. We will also introduce you the new competitor Sophyy automatic cat litter box.

What is a Litter Robot?

A Litter Robot is an automatic litter box designed to simplify the cat litter cleaning process. It’s essentially a self-cleaning litter box that sifts and separates waste from clean litter, depositing the used cats litter into a separate waste drawer for easy disposal.

The Litter-Robot 3 connect was already a game-changer in the world of cat litter boxes, but the Litter-Robot 4 has brought in a fresh wave of innovations. Before we compare them, let’s discuss each model individually.

Litter Robot 3 vs 4 feature comparison table

Features Litter-Robot 4 Litter-Robot 3 Sophyy automatic cat litter box
Oled display screen No No  Yes
Self cleaning cycle time 150s NA 90s
Max waste container cleaning period 7 day per cat 7 day per cat Up to 15 day per cat
Quiet Operation Yes No Yes
Washable cylinder No No  Yes
Size 69cm x74cm x55.88cm  27″ x 29.5″ x 22″ 69cm x74cm x61cm  27″ x 29.5″ x 24.25″ 48cm x 51cm x 51cm 18.90″ x 20″ x 20″
Inner barel (Size inside) 38,1cm x 43,18cm (15″x17″) 38,1cm x 43,18cm (15″x17″) 48cmx51,6cm (19″x20″)
Price 699$ 549$ 559.90$
Warranty 1 Year 1 Year 2 Year
Warranty protection cost 100$ (3 Year)  100$ (3 Year)  50$ (4 Year)
Waste Drawer Yes Yes Yes
Litter Level Indicator Yes No Yes
Weight Sensor Yes Yes Yes
Mobile phone App Yes No Yes
Senior cat (Low entry) No No Yes


This table provides a clear representation of the main features of the Litter-Robot 4, Litter-Robot 3, and the new competitor Sophyy. Each model has its unique features, which we’ll further explore in the following sections.


Delving into Litter Robot 3

The Litter Robot 3, also available in a ‘Connect’ version that includes Wi-Fi capabilities, has been a firm favorite among cat owners for its automated cleaning cycle and convenience features.

Experience the convenience of our Litter Box 3, an automatic, self-cleaning solution for your cat's needs. Reduces litter usage and keeps your home odor-free.

Pros of the Litter Robot 3

  • Automated Cleaning: The Litter Robot 3 starts its cleaning cycle 7 minutes after a cat uses the litter box. This delay allows for clump formation, which is then separated from the clean litter.
  • Spacious: With a large waste drawer, this model can serve multiple cats before requiring to be emptied.
  • Litter Saving: Only the clumps are sifted out, saving a significant amount of litter.

Cons of the Litter Robot 3

  • No Whisker App: The basic Litter Robot 3 lacks compatibility with the Whisker app, which allows for remote monitoring and control.
  • Weight Restrictions: The weight sensor is not suitable for very small kittens or extremely large cats.


Litter Robot 4: The Update

The Litter Robot 4, boasting new features and enhancements, is the successor of the Litter Robot 3. It aims to solve some of the Litter Robot 3’s shortcomings and further enhance the automatic litter box experience.

Discover the advanced features of our Litter Box 4. Designed for up to four cats, it offers superior odor control and easy cleaning.

Pros of the Litter Robot 4

  • Whisker App Compatibility: The Litter-Robot 4 comes with the Whisker app, allowing you to control and monitor the litter box remotely.
  • Improved Weight Sensor: The weight sensor in the Litter-Robot 4 can now detect weights of up to 3 pounds, making it suitable for larger cats.
  • Better Litter Tracking: The Litter-Robot 4 includes an improved entrance mat that helps reduce litter tracking around your home.

Cons of the Litter Robot 4

  • Pricey: The Litter-Robot 4, being the newer model with more advanced features, comes at a higher price.
  • Litter Bedding: Some users have reported that the Litter-Robot 4’s litter bed does not hold as much cat litter as the Litter Robot 3.

Sophyy automatic cat litter box: The Newcomer

The Sophyy robot, takes the best of each litter to offer a competitive product to litter robot. It offers the same functionality and much more at a MINI price ! 

Automatic cat litter box sophyy with iphone

Pros of the automatic cat litter box of Sophyy

  • Best value for money: The Sophyy litter box represents the epitome of high-end automatic cat litter boxes, all at the same price point as an entry-level litter robot.
  • Small in size but huge on the inside : Sophyy has dedicated extensive time and effort to crafting a compact and lightweight product that offers ample space for cats to comfortably reside within.
  • Reliable products: Sophyy is so certain of the quality of its products that it offers a free 2-year warranty on its entire catalog.

Cons of the Sophyy litter

  • Young brand: Sophyy is a two-year-old American brand. 
  • Shipping time: Due to its smaller size, sophyy’s delivery times range from one week to ten days.

Litter Robot 3 vs Litter Robot 4: Feature Comparison

The most significant difference between the Litter Robot 3 and the new Litter-Robot 4 is the enhanced user interface and connectivity of the latter. The Litter-Robot 4 also comes with an upgraded look and feel, providing a more modern and sleek design.

The Litter Robot 3 Connect and Litter Robot 4 both have Wi-Fi capabilities, allowing for remote control and monitoring through the Whisker app. This feature can be particularly useful for busy cat owners who want to monitor the litter level or when their cat used the litter box from afar.

Both the Litter Robot 3 and the Litter-Robot 4 include a waste drawer, a key feature for self-cleaning litter boxes, offering an easy and hygienic method for disposing of waste.

However, it’s worth noting that while the Litter-Robot 4 includes an indicator for when the waste drawer is full, the Litter Robot 3 lacks this feature. This can lead to overfilling if not monitored carefully.

When it comes to their cleaning cycles, the Litter Robot 3 and Litter-Robot 4 are similar. They both automatically start a cleaning cycle after the cat leaves the litter box. The Litter-Robot 4, however, has been reported to have a slightly quicker and quieter cleaning cycle.


The Verdict: Litter Robot 3 vs Litter Robot 4

Both the Litter Robot 3 and the Litter-Robot 4 offer convenience and efficiency for cat owners. They eliminate the need for daily scooping and ensure your cat always has a clean litter box to use. However, the Litter-Robot 4’s advanced features, like the Whisker app compatibility, improved weight sensor, and litter tracking reduction, give it an edge over its predecessor.

Nevertheless, the choice between the two will ultimately depend on your specific needs, budget, and your cat’s preferences. For instance, if you’re away from home often and want to monitor your cats litter box usage remotely, the Litter-Robot 4 or the Litter Robot 3 Connect would be more suitable.

Sophyy is still the best value for money and service. It offers all the qualities of a top-of-the-range model at a very low price.

Remember, no litter box is perfect. Every model has its strengths and weaknesses, but it’s safe to say that both the Litter Robot 3 and Litter-Robot 4 are top-of-the-line products that have significantly improved the pet care experience for many cat owners.

Whether you’re a long-time user of the Litter Robot 3 considering an upgrade, or you’re new to the world of automatic litter boxes, we hope this comparison has helped you understand the similarities and differences between the Litter Robot 3 vs Litter Robot 4. Happy cat caring!


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