Litter Robot 3 vs 4 : Resemblance & Differences

A Litter Robot can be called a cat’s cozy friend. Additionally, Litter Robot is designed to create the most comfortable base for cats. To determine the functioning and product qualification, we have to completely observe both Litter robots 3 and 4, taking a long time. Now we are comparatively revealing litter robots 3 vs 4. Because it’s not only about better features but also ensuring the comfort zone for cats. 

Let’s talk About Litter Robot 3 vs 4. Litter robots 3 and 4 are both designed to make a comfortable sewage system for cats and make the space clean without touching. This gadget is functioned to lessen the workload of cat parents and keep their cats safe and healthy. According to the testing and observation of both systems, we came up with some vital discussions to answer all cat parents’ questions and curiosity.  

Litter Robot 3 vs 4 for 2024

We liked the Litter-Robot 3, so we were excited to try the new Litter-Robot 4. By that, we are going to compare litter robot 3 vs 4. Litter robots 3 and 4 use lasers and weight sensors to check your cat’s health. Also, it cleans better than the regular litter box. We tested Litter Robot 4 for a few months, compared it to our old Litter Robot 3, and observed if it was worth calling the upgrade version.

There is a comparison between Litter Robot 3 vs 4 

FeaturesLitter Robot 3Litter Robot 4
Overall dimensions (L x W x H)27”Lx 24.5’Wx29.5H Safety Detection
Height from floor to step6 feet 3 inch4 feet 5 inch

This litter has a weight sensor. It’s a drawer full indicator – infrared sensorThis litter has laser & weight-based sensors. Curtain sensor & SmartScale sensor. There is a drawer with full indicator – an advanced distance sensor for accurate litter levels
The Litter robot has an OmniSense Safe Cat system. Which includes motion sensors, accurate weight scales inside the globe, and cat presence sensors. Also anti-pinch safety featureOverload detectionIn this Litter Robot Cat sensor weighs on the platform step & inside the globe. Anti-pinch safety featureOverload detectionThis litter takes weight on the platform step & inside the globe
Activation of Litter-RobotLitter-Robot usage history control panel access & lockoutSmartScale sensors & cat specific weight measurementsOmniSense detectionThere is motion sensor, stepping on the platform, & SmartScale sensors inside the globe
Quiet dirt cleaningNoYes
Whisker app featuresLitter-Robot usage historyControl panel access & lockoutWaste basket levelsLitter-Robot usage history control panel access & lockoutWaste basket levels
Minimum cat weight5 lb minimum3 lb minimum
MultiCat DesignUp to 3 cats per householdUp to 4 cats per household

Litter Robot 3 

The Litter-Robot Core Accessories Bundle is the ultimate solution for a regular litter experience. You will love to say goodbye to scooping with the Litter-Robot 3. For over two decades, Whisker designed and assembled the automatic Litter robot in the USA.

This self-cleaning litter box removes the chore of maintaining your cat’s litter. The Functioning of the litter robot effortlessly separates waste from clean litter. So, no more daily scooping, no more mess. 

Features of Litter Robot 3 

The Litter Robot 3 is designed with the trap mat in sleek black, a matching Fence, and a beige Ramp. These all work together to minimize litter tracking and keeping clean. Additionally, the bundle comes with Waste Drawer Liners, Carbon Filters, and Whisker Care for a complete and convenient package.

But that’s not all – take control of your cat’s litter box with the Whisker app from the palm of your hand. You can monitor and manage the Litter-Robot 3 Connect via WiFi and receive notifications when the waste drawer is full. Also, Litter Robot 3 creates noise during cleaning, though it’s not alarming or startling for your cat. It will maintain clean cycles remotely and closely monitor your cat’s health.

Litter-Robot 3 Core Bundle by Whisker 

Litter-Robot 3 Core Bundle by Whisker
Litter-Robot 3 Core Bundle by Whisker

The Litter-Robot 3 Core Accessories Bundle for the ultimate cat care! It comes with the Litter-Robot 3 Automatic Litter Box. Profoundly, a black Litter Trap Mat, Fence, beige Ramp, 25 Waste Drawer Liners, 3 Carbon Filters, and Whisker Care. The dimension of this cat litter robot is 27 “L x 24.5 “W x 29.5 “H. So, say goodbye to scooping – the Litter-Robot 3 will do it for you.

The app lets the cat’s parents control it, get full waste drawer alerts, and check your cat’s health stats. No more litter box odors or mess – the automatic clean cycle and filter keep things fresh. This litter robot was designed and assembled in the USA for 20 years, with top-notch customer service on the Whisker website. It’s time to keep your kitty safe – they should weigh at least 5 lbs to use it in Automatic Mode. Frequently, enjoy a hassle-free, clean cat experience.

Key Features 

  • Never Scoop Again: The Litter-Robot 3 is an automatic, self-cleaning cat litter box. It saves cat parents from the hassle of scooping. Its patented sifting process separates cat’s waste from clean litter.
  • Easy Waste Management: Empty the waste drawer when it’s full. And It cleans up the waste like a breeze.
  • App-Controlled Convenience: The Whisker app monitors and controls the WiFi-enabled litter robot. It receives notifications when the waste drawer is full and starts a clean cycle remotely.
  • Odor Reduction: There is an automatic clean cycle and carbon filters. It securely works together to minimize unpleasant odors. The litter robot firmly provides a fresher environment compared to standard litter boxes.
  • Minimize Litter Tracking: The textured ramp surface, fence, and trap mat help reduce litter tracking by catching stray litter as soon as your cat exits the box.
  • Complete Accessories Bundle: The package includes essential accessories like a litter trap, mat, fence, ramp, waste drawer liners, carbon filters, and WhiskerCare for comprehensive convenience.
  • For User Safety: You should ensure the cat weighs at least 5 lbs (2.2 kg) for safe use in Automatic Mode. In addition, try to avoid placing the Litter-Robot against a wall or in a corner, maintaining a safe distance.


  • The Litter-Robot 3’s automatic cleaning saves you time and effort by handling the scooping task independently.
  • Cleaning up is a breeze for litter robot 3. 
  • Monitor and control the litter box with ease using the Whisker app. It receives notifications and starts clean cycles remotely. 
  • The automatic clean cycle and carbon filters team up to keep your space fresh by minimizing odors.
  • For total convenience, you will get the complete bundle, including a litter trap, mat, fence, ramp, waste drawer liners, carbon filters, and WhiskerCare.
  • As it was designed and assembled in the USA for two decades, Whisker’s Litter-Robot is a reliable and durable choice in pet technology.


  • In automatic mode, Litter Robot 3 can’t function with a weight of more than 5 lbs or 2.2 kg.
  • The Litter-Robot Core Accessories Bundle is relatively expensive. And this is what makes it a higher upfront investment compared to traditional litter boxes.

Overall Rating: 4.2 out of 5

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Litter Robot 4 

Make life easier for your feline friend with the Litter-Robot 4, the newest and smartest automatic cat litter box! Say goodbye to scooping as the patented sifting technology quietly separates your cat’s waste. This litter robot ensures a fresh bed of litter for every use. Advanced features, like reduced litter tracking and real-time monitoring through the Whisker app, make it a breeze for you and your cat. The wide opening and elegant design maximize comfort for cats of all sizes. And with the multi-cat design, it’s perfect for households with up to 4 cats. 

Appropriately, the optional Odor trap System keeps the litter box smelling fresh. Connecting to the Whisker app lets you track your cat’s activities, view stats, and receive alerts on your phone. It’s like a high-tech haven for your kitty’s bathroom needs – clean, comfortable, and oh-so-easy! Litter robot 4 doesn’t make a noise like Litter robot 3 does. Litter robot 4 not only empties the waste drawer but also adds litter as needed for a pleased cat.

Features of Litter Robot 4 

Litter robot 4 is upgraded to Litter robot 3. This upgraded 4 version is super cool because it has lasers and weight sensors to keep your cat safe and tell you about their health. The special Omni Sense sensors use lasers to let you know when your cat enters the litter box. Surprisingly, cat parents can check how much litter is in there, and if the waste drawer is full, they can command it to empty using the Whisker app.

That’s not all – this new version also has weight sensors. It’s comparatively different from the Litter-Robot 3 because it not only shows when a cat uses the litter box but also weighs them. The weight info goes to the Whisker app so parents can monitor their cat’s weight and bathroom habits. It’s like having a health monitor for the furry friend. And we are impressed with the feature that the Litter-Robot 4 doesn’t make noises.

Litter Robot 4 CATLINK Self-Cleaning Cat Litter Box

Litter Robot 4 CATLINK Self Cleaning Cat Litter Box
Litter Robot 4 CATLINK Self-Cleaning Cat Litter Box

The Litter Robot 4 CATLINK Self Cleaning Cat Litter Box cleans itself automatically. When the cat is done using it, a unique process separates the yucky stuff from the clean litter. The box has a big drawer for waste, and the cat’s parents only have to change the trash bag every 15 days. This process is perfect for one cat. It’s super safe and comfortable for cats. It has detectors and sensors to make sure no kitties get hurt. The design is smart, like an inverted triangle, so it stays steady.

The best part of the litter robot is there are no bad smells. There’s a rechargeable purifier and a filter that can get rid of stinky odors and litter mess. Also, it doesn’t need Wi-Fi or an app; plug it in, add litter, and it will be ready. The most important thing is that it is big and about 23 inches tall. It can handle cats from 3.5 to 22 pounds for this much space. But it’s not for super tiny kittens. In addition, it just works best with clumping cats, not the other kinds.

Key Features 

  • Cleaning Process: After the cat uses the litter box, it automatically separates the dirty stuff from the clean litter. The special screen helps save more cat litter. In particular, the big waste drawer only needs to be changed every 15 days for one cat.
  • Safety Features: It has cool features like self-detection and gravity sensors. There are sensors to make sure no cat gets hurt. The design is stable and safe, shaped like an upside-down triangle.
  • Less Smell and Mess: It has an optional rechargeable purifier and a filter that removes bad smells. The litter box has a barrier to stop litter from getting all over when the cat leaves.
  • Easy to Use: You don’t need Wi-Fi or an app to control the litter. The litter robot is ready to use right out of the box. So plug it in, add cat litter, and it works without your help.
  • Noiseless Cleaning: The litter robot never makes noises during cleaning. So, It will never startle the cat and work spontaneously.


  • After the cat uses the box, it automatically separates the dirty stuff from the clean litter, so you don’t have to do it.
  • It has a really big drawer that holds all the waste, and you only have to change it every 15 days.
  • It has special sensors and a smart design, so your cat won’t get hurt when using it.
  • There’s an optional smelly purifier and filter that makes sure the litter box doesn’t stink. It can even remove 90% of bad smells.
  • You don’t need Wi-Fi or an app. It comes ready to use; just plug it in, add litter, and it’s good to go.
  • During cleaning, it doesn’t make any sound.
  • The litter box is the right size, not too big or small, and can handle cats from 3.5 to 22 pounds.
  • It has a special entrance barrier that stops litter from being scattered around when your cat leaves.


  • The Litter Robot works best with clumping cat litter. And it might not work well with other kinds.
  • Using too much litter and going above the maximum level line might not work properly.
  • This litter box is not the best choice for kittens that are too tiny or underweight.
  • It’s more suitable for cats that weigh between 3.5 and 22 pounds.

Overall Rating: 4.2 out of 5

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What Litter Robot Defines?

Cat’s Litter robot is designed to carry out its sanitation and sewage system with the help of technology. Surprisingly, it is the kind of gadget that will reduce the workload of cat parents. And will take care of the cleanliness of the cats with excellent efficiency. Firstly, it comforts the cat and its parents, and secondly, it maintains hygiene. This robot will work automatically, just with the functioning it has. It will clean cat poop and make the space clean and bacteria-free without touching the gadget.

Discover the convenience of the Litter Robot; it’s a smart self-cleaning litter box for your cat. And with its patented sifting technology, it effortlessly removes waste. And deposit clumps into a drawer below. Specifically, each cycle ensures a fresh litter bed, providing your cat with a consistently clean space. So, it’s time to say goodbye to daily scooping and say hello to a hassle-free solution that keeps both you and your feline friend happy. Upgrade to the Litter-Robot for a cleaner, more enjoyable litter box experience.

Is Litter Robot 3 vs 4 Comparison Worth Any Benefit?

After discussing all the pros and cons of litter robot 3 vs 4, we know every part of these two versions. Litter robots 3 and 4 are both beneficial, but when it comes to the point of better, we choose Litter robot 4. Gradually there’s litter robot 4 featuring is much better and advanced than litter robot 3. Finally, it can be said that by discussing both litter robot features, we got many beneficial advances. Regarding results, most attention is attracted by the litter robot 4. So, thereby, we get the most helpful result of litter robot 3 vs 4. 

The Litter Robot 3 comes in gray or beige, while the new Litter Robot 4 comes in black or white, which we like because those colors seem more up-to-date. With Litter Robot 4’s perfect measurement, we no longer need to hide it in a corner or buy additional furniture to conceal it. The new design is not only more functional but also more aesthetically pleasing. Gradually, the Litter-Robot 4 has laser and weight sensors that keep your cat safe and tell you about your cat’s health, like weight and litter box use. With the Whisker app, you can see when your cat enters the box and check litter and waste levels in real time.

Which Is the Best Litter Robot in 2024 – Litter Robot 3 vs 4?

We have some significant points to discuss with the spontaneous testing and observation of Litter Robot 3 vs 4. We like the new Litter-Robot 4 because it looks more modern and clean. It’s different from the older Litter-Robot 3, which looks like a big spaceship. The Litter-Robot 4 has a cooler and more straightforward design that fits well in most homes. 

As time goes on, there’s usually more cat litter that ends up around the unit. Materially, in the case of Litter Robot 3 vs 4, the Litter-Robot 4 is a bit better because it’s smoother and has fewer parts to wipe down. So, it looks nicer and makes cleaning a bit easier. However, stay in the lap of luxury with the Litter Robot 4 CATLINK Self-Cleaning Cat Litter Box

Litter Robot 4 CATLINK Self Cleaning Cat Litter Box
Litter Robot 4 CATLINK Self-Cleaning Cat Litter Box

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After using the Litter-Robot 4 for over six months, I like the improvements compared to the litter Robot 3 vs 4. The Litter-Robot 4 is quieter, lets us know our cat’s weight, and requires less attention for the waste drawer. The sleek and minimalist design of the Litter-Robot 4 is a big plus point, especially when we compare Litter Robot 3 vs 4. 

Undoubtedly, Litter Robot 4 is an excellent choice for any cat owner looking for an efficient and stylish litter box solution.

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