The Litter-Robot 3 Full Review (2022): Don’t Buy Before Reading This!

By Davis Wilkins •  Updated: 05/04/22 •  20 min read
robot and human hand touching

I remember the day I first saw the Litter-Robot: I was 13 years old, sitting on a beach in Mexico with my dad.

The sand was warm and soft under my feet, the waves rolling in gently and giving off a salty smell that reminded me of soda biscuits.

The wind brushed over my skin as if it were a huge hand from above gently rubbing my skin and giving me goosebumps. I also remember thinking how much I wanted one for myself.

When a leaf would blow into the picture, its edge would sharply cut across my dad’s face in profile. The edge of the leaf was glowing against his pale skin in the afternoon light.

Let’s face it. No one likes cleaning the cat litter box. Now, imagine if that job got even worse?

It’s not just humans who need to be happy; cats do too.

If you have a cat at home that you love, then I’ll bet you already know the joy of having a pet.

They provide great company and entertainment. However, there is one problem with having pets, and that’s the amount of litter poop they produce.

Let’s face it, pets are amazing, but they create messes, so disposing of the dirty litter can be a problem.

I’m sure you’ve seen many solutions to this on the market today. But I can tell you all about the Litter-Robot III Open Air Automatic Self-Cleaning Litter Box which is the best solution to your cat litter problems (and a bit more)

The Litter robot is at the forefront of indoor pet-rearing.

It is a fully automatic litter box that looks to make your furry little friend’s life, and yours too, easier.

If you often have problems with clumped litter, smells, or just have trouble finding time to tidy up after your cat, then this is a great solution for you.

With an automatic Litter-Robot, you no longer need to take out the trash multiple times a week. It will keep your bathroom smelling fresh and clean.

Simply check up on it once every two to three weeks to empty and change the litter. No more getting stuck with nasty smells when trying to clean the box – plus it only takes seconds!

A Litter-Robot does solve the problems of a multi-cat household by letting you have more than one cat without your place smelling like their litter boxes.

If you’re considering buying one – DO IT! You will love it!

If you think about all the money people spend on their pets every year, why are more of them not buying a Litter-Robot?

This is a question that our team has asked ourselves often. The price tag on these bad boys is higher than most, but in the end, it is utterly worth it.

Are you looking to get rid of your cat litter boxes? With this hi-tech innovation, there is no need for scooping or cleaning.

How Does a Litter-Robot Work?

When illustrated, a litter robot box is composed of a sphere on the top and a box below it.

A plastic bag lines the compartments in the box where the waste falls.

The robot’s sensors detect when the cat enters the sphere and does not turn or move while the pet is inside.

Once the pet is inside, the blue standby light on the robot’s control panel changes to a red light, an indication that it has sensed the presence of the pet.

The cat has pretty time to clear, commonly seven minutes (can be changed to other intervals) before the automatic litter robot initiates the cleaning cycle.

The Litter-Robot reveals its mechanical secrets as it starts to whine and rotate.

A plastic netting fitted below the sphere allows the machine to separate the waste and cat litter, by only allowing the latter to pass.

A small opening opens at the bottom of the globe as it spins, allowing the already separated waste to plunge through the hole into the collection bin.

Once emptied, the globe automatically spins to its initial position, and the gate is retracted and is ready for the pet’s next visit.

The sensor detects when the waste is full and require to empty.

Thanks to the Wi-Fi-enabled version that will send alerts on your smartphone telling you when anything goes wrong or when the machine needs cleaning.

I can share a guide on how to clean a litter robot 3 later.

Worry no more about the potential odor that could arise from the stored waste rather than being disposed of in the trash.

The drawer of the litter robot has fitted air filters that ensure good odor control.

Features of the Litter-Robot 3:

What are the differences between litter robot 2 and litter robot 3?

Both the Litter-Robot 2 and 3 are self-cleaning litter boxes, so there is no need to scoop or clean the box daily. The primary differences between the two models are:

1)   Litter chamber:

The cat Litter-Robot 3 has an extra-large litter chamber (the drawer that collects waste) that can hold up to 2 weeks of waste. The litter chamber slides out from the front for easy cleaning. You no longer have to tip the machine back to get to the waste drawer!

2)   Night light:

These automatic litter boxes have a night light built into them which can be turned on or off as desired. The Litter-Robot 3 includes an internal night light that turns on automatically in dark rooms. The night light can be manually turned off using the included remote control.

3)   Carbon filter:

The automatic Litter-Robot 3 has a new carbon filter design that requires less frequent changing and is more effective at absorbing odor.

4)   Bubble Unit:

The cat Litter-Robot 3 has a new version of their Bubble Unit (the globe part that sifts waste from the litter) that reduces the amount of litter stuck in the edges of the globe after cycling.

5)   Lighter and smaller:

The LITTER-ROBOT 3 is lighter and smaller, so it’s easier to move and lift.

6)   Energy-efficient:

It uses 50% less power than the LRII, making it more energy-efficient.

7)   Waste drawer:

The LITTER-ROBOT 3 has an improved waste drawer that accepts ordinary tall kitchen trash bags (or our custom Litter-Robot bags). The waste drawer has powerful clamps underneath that hold a litter bag in place when you close it, so you don’t need to use a twist tie or rubber band as you did with the old machine.

The Litter-Robot 3 has a 20 percent larger waste drawer than the previous model. It can hold a full week’s worth of waste for a single cat, and up to three days of waste for multiple cats.

8)   Alerts:

The Litter-Robot 3 comes with the ability to send you alerts when your cat uses it, when the waste drawer is full, and when your unit is offline. These notifications are sent through email or text message.

9)   Larger entryway:

The Litter-Robot 3 features a 15 percent larger entryway to accommodate larger cats, kittens, and senior cats with mobility issues. It also features a double-height entryway to make it easier for larger and older cats to enter and exit.

10) Improved safety sensors:

Additionally, the Litter-Robot 3 comes with improved safety sensors that allow it to operate even if something is blocking the entryway.

Other than these differences, both models function the same and all of the parts are interchangeable between the two models.

Sitting black cat

Why Litter-Robot 2 Or 3?

The litter robot, or what is commonly termed an automatic cat litter box, is a great solution at home for your pet.

Since the release of the first litter robot 1, there are numerous advancements to improve their performance.

Every new litter robot introduced in the market is usually an improved version with additional features that match today’s requirements.

Are you confused about choosing the litter robot that best suits your needs and those of your cats?

You can choose between litter robot 2 or litter robot 3, which was initially known as “Open Air.” Each of these models has other upgraded versions.

Currently, it is challenging to find a new litter robot 2.

However, you can be lucky to purchase a used one in Craig’s List-Auto-pets, Facebook Marketplace, or eBay.

Litter-Robot 3 is an upgraded version of litter robot 2. Therefore, if you’re lucky to pick one from these sites, it can be upgraded to Litter-Robot 3 connect.

Litter-Robot 2 and Litter-Robot 3 share so many similarities in their components and functioning.

Litter-Robot 2 and 3 have similar components, such as a 15-volts DC power supply, 3-waste drawer lines, and a carbon filter. However, the latter has additional features and is slightly bigger compared to litter robot 2.

For example, the Litter-Robot 2 initiates the cycling process after 7 minutes, while Litter-Robot 3 can start the cycling process after 3, 5, or 7 minutes.

Litter-Robot 2 and 3 have different mechanisms of activating the sensor. For litter robot 2, the sensor is fitted on the step while fitted in the globe on litter robot 3.

Unfortunately, the sensor may not be activated in litter robot 2 when the cat fails to use the step by jumping straight to the globe.

Some pet experts recommend the cleaning litter robot 2 when there are two cats in the house, while Litter-Robot 3 is ideally suited for three or even four cats if need be.

Because of each model’s size and design, the Litter-Robot 2 can be ideal for medium and small-sized cats while litter robot 3 is ideal for cats that even weigh 20 lbs.

However, pet experts usually recommend either the litter robot’s version to be used on cats that weigh at least 5 lbs.

Is the Litter-Robot Worth It?

The Litter-Robot is worth it because it’s a great alternative to cleaning a traditional litter box.

If you’ve ever stepped into your home to discover a smelly litter box full of urine clumps and feces, then the Litter-Robot may be just what you need.

It is a fully automatic litter box that can help you maintain a cleaner home and a happier cat.

The Litter-Robot is an expensive investment, but it is arguably the best automatic self-cleaning cat litter box on the market and one that many users report as being worth the money.

We’ve reviewed the pros and cons of this product to help you decide if it’s right for you.

Advantages of a Litter-Robot

What Are the Cons of a Litter-Robot 3?

Frequently Asked Questions:

Are You Worried If Your Kitten Can Use the Litter-Robot?

Well. I would not recommend the cats or kitten that weighs less than 5 pounds to use the litter robot, especially in the unattended automatic mode.

The reason is that the machine may fail to activate the sensor because of the low weight of the cat or kitten.

However, you can keep the robot kitty litter box off and only turn it on when the kitten has used it because it will automatically initiate the cleaning cycle.

By doing this, the kitten will familiarize itself with using the cleaning litter robot, relieving you of the burden of scooping litter boxes.

I would recommend keeping the litterbot turned off until the cats gain enough weight to activate the sensor.

If your cat ways over 5 pounds, then it can effectively use the machine in automatic mode.

Are You Worried Your Cats May Not Go Inside the Globe?

Worry no more. Cats are usually so curious and like investigating new objects.

If your cat is used to the covered litter box, it may be quicker to investigate the litter robot. However, I would recommend you place the cleaning litter robot in the exact place where you had placed the old litter box.

Some pet experts recommend leaving the old standard litter box for a short time near the litter robot. Others recommend a significant quantity of clean litter from the old litter box to be added to the robo kitty litter box because the cat will be familiar with the scent and will be inclined to investigate.

Cat seated on table

Do 2 Kittens Need 2 Litter Robots?

Two kittens do not require two litter robots. Pet experts usually recommend a single litterbot to be used by 3 to 4 indoor cats.

Do not be worried if you have more cats because they can use a single unit. However, you would be required to empty the drawer more often.

For example, the drawer can be emptied for one and two once and twice per week, respectively. For more than three cats, you are supposed to empty the drawer every other day.

It is worth noting that when the cat robot litter box is interrupted during the 7 minutes cycle by another cat entering, the machine has to wait for seven more minutes. I bet we can tolerate this turnaround time.

As a result, the litter bed may not be clean for the next use. Litter robot iii open air automatic self-cleaning litter box can be used by one to four cats because it does not require regular changing of the litter and regular checking of the drawer.

Are You Worried About the Weight That Can Be Supported by The Litter-Robot?

Worry no more because the litter robot does not have a weight limit.

When I recommend a certain size of the cat to use a specific model of the litterbot is usually because of the size of the entryway and the globe’s size.

About the comfort, while using the litter robot, I would say if the cat turns around in the globe, then it is comfortable regardless of its weight.

What Litter Does the Litter-Robot Use?

The one robot litter box design makes it work with various clean litter types.

The best litter for litter robot is standard clumping clay litter such as litter robot premium clumping clay litter

We recommend using an unscented, natural clay hard clumping litter (not crystals), with a granule size of ¼” – ½”.

Granules larger than ½” could potentially get stuck in the screen and block the passage of waste.

We recommend the use of clumping clay litter as the best litter for litter robots because of its higher absorbency and its ability to absorb liquids and form clumps when wet.

In addition, clumping clay litter is heavier than non-clumping litter, preventing it from being kicked out of the globe.

Some customers use lightweight clean litter made from corn, wheat, or pine.

However, we do not recommend this type of litter because it tends to be dustier and does not absorb well.

Lightweight litters also tend to be kicked out of the globe more often than heavier clay litters.

Crystal litters are not recommended because they can build up on the sensor and cause false readings.

PS: Avoid adding too much litter into the litter robot 3 connect.

Litter-Robot is not compatible with any kind of biodegradable or flushable litter.

How Much Is a Reconditioned Litter-Robot?

The answer depends on which model you’re considering.

The cost for a refurbished Litter-Robot III Open Air is $399 (plus tax and shipping) with a 90-day warranty.

A reconditioned Litter-Robot is a unit that has been returned by another customer within 30 days of purchase.

When they receive the return, the engineers do a full inspection to ensure that there are no defects with the product.

They also replace any worn parts and reset all settings.

Once this process is complete, they thoroughly clean the unit both inside and out.

The result is an excellent product that looks as good as new but sells at a discounted price because it has been used by another customer for less than one month.

What Is the Price of Litter-Robot 3?

The standard price for the latest model is $549.

Occasionally, some sales and promotions make it even more affordable. CLICK HERE to see the currently ongoing sale.

You will get a 90-day money-back guarantee, so if you decide this automatic self-cleaning litter box isn’t right for your family, simply send it back within 90 days for a full refund.

That way there’s no risk in trying out this product.

Keep in mind that the price of Litter-Robot 3 includes free shipping for orders within the continental U.S. If you live outside of this area, we may still be able to ship to you, but additional shipping fees may apply.

Where to buy litter robot

You can check out the most competitive price for the robotic litter box HERE.

Is Litter-Robot Good for 3 cats?

Yes, the litter robot is good for 3 cats.

Litter-Robot’s cleaning cycle cleans the litter after each use and keeps the waste contained in a drawer until you empty it.

It does so regardless of how many cats are using it.

The only thing that may affect how well the litter robot works for 3 cats is if the cats use it too frequently before the cleaning cycle can be complete.

If one cat goes in, then another cat immediately follows, the cleaning cycle will not be able to complete before the next cat’s usage.

In addition, if all 3 cats use it within a short amount of time, they may make such a mess that they may not be able to clean up properly.

The best way to avoid this problem is by introducing them slowly to their new cat robot litter box and/or having more than one litter robot available in separate spaces.

How long did your Litter-Robot last?

Users have reported that this device lasts as long as 15 years with minimal maintenance.

However, you must play your part in taking care of it for it to offer you long-lasting service.

The manufacturer takes pride in the quality of the Litter-Robots and wants their customers to be completely satisfied.

They have a 1-year warranty on the motor/mechanical components, and a 90-day warranty on electrical components.

If you are within the warranty time frame, you can contact the customer service so that they help troubleshoot any issues with your Litter-Robot or send out replacement parts if needed.

How many cats can use the Litter-Robot 3?

The Litter-Robot 3 is designed to accommodate multiple cat households, and the company claims it can accommodate 3 active cats of average size.

The product specs state that the robot litter box 3 accommodates cats up to 20 pounds, which is significantly more than the average domestic cat size of 10 to 12 pounds.

If you have more than three cats, we recommend using a second Litter-Robot for your other cats so that each cat only uses one robot cat litter box.

For example, if you have four cats, you should place a second Litter-Robot in your home for the fourth cat. Both units will be able to handle the waste from up to three active cats each.

Does Litter-Robot 3 have WiFi?

Yes, the Litter-Robot 3 is WiFi-enabled.

The robot cat litter box will connect to your home WiFi network.

If it doesn’t automatically connect, you can follow the steps in our cat Litter-Robot 3 WiFi Setup Guide.

WiFi connectivity allows you to control your Litter-Robot from anywhere in the world (with an internet connection).

You can also sign up for a free Litter-Robot account at, which will allow you to:


It is evident that Litter-Robot 3 effectively serves your needs and those of your cat. You will no longer be worried about leaving home for a few days.

Litter-Robot 3 Connect can be very promising to cat owners as they are Wi-Fi enabled. Therefore, as a cat owner, you will be able to monitor your cat’s activity using ConnectApp which is supported by android and iOS mobile devices.

Also, using this version, you can receive alerts on a smartphone when anything goes wrong, and you can view the level of the waste in the drawer.

And now that you know the benefits of a self-cleaning litter box and the features you should look for, clearly, the litter robot iii is your best option.

Even though it is a bit more expensive than the other models, you know that it will pay off in the long run by saving time and money on numerous occasions.

There is a very good reason why the robot cat litter box continues to be a popular choice for cat owners when it comes to going hands-off with the regular litter box.

It genuinely does work, which is why I believe that the automatic litter boxes represent an excellent value for the money.

If I was looking at it from an investment perspective, the cat Litter Robot 3 would be one of my top choices in terms of overall ROI.

Davis Wilkins

Davis Wilkins is a dedicated cat lover, with three cats under his care. He grew up in a cat-loving family, nurturing these feline friends. As a result, he purposed to share his cat knowledge with the universe. Wilkins has been writing professionally for over four years, specializing in feline care with a keen interest in litter box care and handling. He hopes to help other feline lovers achieve their pet care goals.

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