Reviewing the Best Litter for Litter-Robot – Top 6 Picks and Buying Guide

best litter to use with litter robot

Any cat owner knows how demanding those little furballs can be. They demand the very best… and who are we to argue – they are the very best too!

But if we’re not watching them 24/7, they may end up with a dirty litter tray. Fortunately, a Litter-Robot can guarantee a clean litter box for your cat all the time.

The Litter-Robot is one of the best devices for pet owners, making cleaning the litter tray less of a chore and allowing you to enjoy the best parts of owning a cat. It’s like magic!

Of course, it’s not magic, but rather an ingenious design that separates clean litter from dirty clumps, making the cleaning process a chore you don’t have to worry about anymore.

However, it’s important to note that the Litter-Robot is designed to work best with specific types of cat litter, such as unscented litters with low dust that clump well. This helps the cleaning cycle run more effectively and leaves your cat with the best litter box they deserve.



Best Overall

Fresh Step Advanced

  • Weight: 42.5 pounds
  • Material: Clay

Premium Choice

Dr. Elsey’s Precious Cat Ultra

  • Weight: 18 pounds
  • Material: Clay

Super Lightweight

SmartCat All-Natural

  • Weight: 20 pounds
  • Material: Corn, Wheat

Best Odor Control

Purina Tidy Cats

  • Weight: 8.5 pounds
  • Material: Clay

Scented Option

Arm & Hammer Double

  • Weight: 40 pounds
  • Material: Clay

For Picky Cats

Clumping Clay Cat Litter

  • Weight: 25 pounds
  • Material: Clay

Our Top 6 Picks of the Best Litter for Litter-Robot

No matter whether you own the Litter-Robot 3 or 4, any of the following cat litters are excellent options that work well and make the most out of your cat’s litter box.

1. Fresh Step Advanced

Fresh Step Advanced Simply Unscented

If you’ve ever experienced the odor left behind in a cat’s litter box, you know that the word “fresh” rarely applies – but it can with this litter!

Fresh Step’s Advanced cat litter is unscented with no added fragrances, making it a great option for picky cats with sensitive noses.

However, do be aware that some users have reported a vague natural scent which might put off some cats. Still, this is a top cat litter recommended by veterinarians.

While the Litter-Robot traps odors brilliantly, this Simply Unscented cat litter makes odor control even more effective – in fact, this is one of the best odor-controlling cat litters at such an affordable price. That’s because this litter includes charcoal, guaranteeing 10 days of odor-elimination

It’s highly absorbent too, and creates hard clumps, making it easy for the litter tray to scoop effectively and reducing tracking throughout the house.

best litter for litter robot

Fresh Step claims that this cat litter is almost dust-free. But there are various user reviews that report experiences of dust clouds, so do be careful when handling it as it’s not 100% dust-free.

Still, overall this is one of the best cat litter to control odors on the market.


  • Affordable
  • Gentle texture for cats
  • Clumps well for easy scooping and less tracking
  • Very effective at controlling odors


  • Comes with a lot of dust
  • Vague scent reported by some users

Fresh Step Advanced

The Price of “Fresh Step Advanced” varies, so check the latest price at

2. Dr. Elsey’s Precious Cat Ultra

Dr. Elsey's Precious Cat Ultra Cat Litter

Dr. Elsey’s cat litter is a premium cat litter ideal for both cats and cat owners, with a litter formulated by veterinarians.

Although a business, Dr. Elsey’s priority lies on science and the well-being of pets more than profits – that’s why you can find such a premium product at such an affordable price!

Made from bentonite clay, this cat litter is highly absorbent and effective at clumping, making it easy for the litter box to scoop during an automatic cycle.

However, the clumps can be sticky at times and may even stick to your cat’s paws, potentially leading to tracking around the house.

Still, when pouring out the cat litter, you don’t need to worry about a big dust cloud hitting your face. This litter has a hypoallergenic formula that’s safe for both you and your kitty.

However, it’s not completely dust-free though, so it’s still important to be careful when handling the cat litter.

best cat litter for litter robot

One area in which this litter truly excels is in its litter box odor control. It’s formulated to keep your house smelling as fresh as possible, even if you live in a multi-cat household.

Combined with the Litter-Robot, this litter will make it smell as if you didn’t even have a litter tray in the house at all!


  • Affordable
  • Hypoallergenic
  • Clumps well for easy scooping
  • Good odor control
  • Unscented
  • Low levels of dust


  • Clumps can stick to paws and cause tracking
  • Not completely dust-free
  • Heavier than other cat litters

Dr. Elsey’s Precious Cat Ultra

The Price of “Dr. Elsey’s Precious Cat Ultra” varies, so check the latest price at

3. SmartCat All-Natural

SmartCat’s all-natural cat litter is easy to pour out because it’s so lightweight. And, as a bonus, it’s almost totally dust-free, reducing the risk of inhaling anything unpleasant.

This makes it better than many other litters that merely claim to be low0dust but still come with a dust cloud whenever poured out.

But the highlight is that it truly is all-natural. Made from 100% grass, this biodegradable cat litter doesn’t contain any chemicals, GMOs, or fragrances.

But despite being all-natural, it still clumps just as well as clay litter. In fact, it can clump even better, creating tight clumps that stay intact even when thrown to the ground. This makes it one of the best litter for Litter-Robot.

litter robot best litter

Since it’s made from grass, it has a very soft texture that’s gentle on cats’ paws and is completely unscented.

However, it might not be as effective in controlling odors, and some users have found the litter sticks to your cat’s paws and result in tracking throughout the house.


  • Kitten-safe
  • Excellent clumping ability
  • Environmentally friendly
  • Lightweight litter
  • Unscented
  • Natural and chemical-free


  • A more expensive option
  • Less effective odor control
  • Can leave tracking

SmartCat All-Natural

The Price of “SmartCat All-Natural” varies, so check the latest price at

4. Purina Tidy Cats Lightweight

Tidy Cats Lightweight 4-in-1 Scented Clumping Clay Cat Litter

As effective as the Litter-Robot is at controlling odors, it can’t do everything – that’s why you need a cat litter that can support it.

This Purina Tidy Cats litter can do exactly that thanks to a 4-in-1 formula that targets cat urine, fecal, ammonia, and bacterial odors.

In fact, when used properly, it can stop ammonia odors for a guaranteed two weeks – even if you have a household with multiple cats! With 70 years of experience, it’s no surprise that Purina is America’s #1 cat litter brand.

However, it contains a floral scent to help battle odors, but this may not be enjoyable for your cat if they’re picky about scented litter.

Made from natural clay, this litter clumps for easy scooping by the litter tray, but it may not create as tight and hard clumps as some other litters. Some users have reported that it smears on the side of the Litter-Robot after the cleaning cycle.

On the other hand, this cat litter is 99.9% dust-free when pouring out, and it’s 50% lighter than other clumping cat litter, making it easier to pour and handle.

litter robot best litter

This lightweight cat litter weighs just 8.5 lbs but is just as effective as a 20 lbs bag of normal clay-clumping litter.

However, the lightweight nature of this kitty litter means it’s more prone to tracking, and some users have reported that an automatic litter box might not always detect when your cat has used the litter tray.


  • Fantastic all-round odor control
  • Blocks ammonia odors for 14 days
  • Low-dust formula
  • Very lightweight


  • Scented
  • Clumps aren’t always tight enough
  • Can lead to tracking
  • Might be too lightweight for Litter-Robot

Purina Tidy Cats

The Price of “Purina Tidy Cats” varies, so check the latest price at

5. Arm & Hammer Double

Arm & Hammer Double

What exactly is this Arm & Hammer litter’s “double duty?” Your cat will use their traditional litter box for two things – to leave urine or feces. This litter is designed to effectively control odors from both.

Thanks to its odor-neutralizing clay and baking soda crystals, it does this quickly and effortlessly.

It even has a subtle but refreshing scent to combat odors even more, but not all cats will appreciate this.

Ideally, you want all the waste to be scooped up as effectively as possible. With this kitty litter, it’s even easier for the Litter-Robot to accomplish this since it can create hard clumps thanks to its super-absorbent formula that locks in both odors and moisture.

best cat litter for litter robot

It’s almost completely dust-free and boasts an anti-tracking design, making it easier to refill the litter tray with an easy-pour spout.

However, it’s still quite a heavy litter to pour and dispose of.


  • Excellent at absorbing and neutralizing odors
  • Low-dust formula
  • Reduced tracking


  • Vague scent may be too much for sensitive cats
  • Can be very heavy to pour and dispose of

Arm & Hammer Double

The Price of “Arm & Hammer Double” varies, so check the latest price at

6.Clumping Clay Cat Litter

The main purpose of the Litter-Robot is to scoop away the waste, so you don’t have to… so a cat litter with the name “Scoop Away” should be a match made in heaven!

The good news is that this litter clumps excellently, creating ultra-strong clumps that are particularly easy for a self-cleaning litter box to sweep away. This helps to control odors and makes the cleaning process quick and efficient.

While the clumps are very strong, they can occasionally be sticky, leading to some litter tracking.

This litter excels in odors control, eliminating both feces and urine odors for up to a week guaranteed, thanks to its Ammonia Shield that prevents bacterial odors.

It doesn’t need to rely on any added fragrance, making it ideal for picky cats who prefer unscented litters.

best cat litter for litter robot

Scoop Away claims to be dust-free, making it less of a hassle to refill the litter tray. However, be careful when handling the litter, as some users have reported experiencing dust, which can lead to some tracking that requires cleaning up.


  • Excellent clumping ability
  • Affordable
  • Guarantees odor control for a week
  • Unscented


  • Clumps can be sticky
  • User reports of some dust
  • Can result in tracking

Clumping Clay Cat Litter

The Price of “ Clumping Clay Cat Litter” varies, so check the latest price at

Choosing the Best: What to Look For

Although only six litters are mentioned here, more outstanding products are available that work well with a Litter-Robot. It’s not easy to narrow down the best litter for Litter-Robot!

However, you need to know what to be on the lookout for. In short, you want to pay attention to the type of litter, whether it’s scented or unscented, and how it is when it comes to dust and tracking.

Type of Litter:

When it comes to choosing the best litter for Litter-Robot, there are a few options to consider. One decision you’ll need to make is whether to choose clumping or non-clumping litter.

Clumping litter is generally the best option for the Litter-Robot since it allows the device to easily separate clean cat litter from dirty clumps, with solids and clumps being easier to sweep away than with non-clumping litter.

Other types of litter, such as silica gel crystals, may be small enough to work with the Litter-Robot too, but they’re generally not as efficient as clay-clumping litter.

Whether you choose clay or another type of litter, it’s important to choose a high-quality clumping litter with good absorption and clumping properties to avoid sticky litter that doesn’t sift well in the Litter-Robot.

Scented vs Unscented:

Cats may be adorable, but the odors they leave behind in a litter box can be less than pleasant, lingering around and potentially ruining the smell of your household. To combat this, some litter is scented to mask the odors with a more potent fragrance.

However, scented litter doesn’t actually eliminate odors – it just hides or masks them.

Additionally, many cats dislike scented litter boxes, and studies have shown many actually prefer unscented litter.

It’s better to choose an unscented litter that’s more effective at controlling odors by absorbing them.

Low-Tracking and Low-Dust:

The Litter-Robot does a great job of cutting out the chore of cleaning the litter tray, but you still need to refill it.

To make this task easier, it’s best to choose a low-dust litter that won’t create a cloud of dust every time you pour it out.

This is especially important for the Litter-Robot since you don’t want the device to be covered in dust, which can make it more likely for your cat to track it throughout the house.

Most litters aren’t 100% dust-free, but the Litter-Robot 4 has a LowDust screen, a patented sifting process that actually reduces dust during its cycling process. This helps to make the litter refill process less of a hassle and keep your house cleaner.

Final Thoughts

If you want to get the most out of your Litter-Robot, it’s important to choose the best cat litter to match it.

To get the job done well, you should look for a high-quality clumping cat litter that’s low-dust, low-tracking, and unscented.

These features will help to ensure that your Litter-Robot is able to function efficiently, scooping away waste and controlling odors effectively.

Matt Twinley
Matt spends his days working with Halie, his adorable cockapoo puppy, by his side. Having owned a variety of pets his whole life, Matt is passionate about animals and always feels most at home with a furry friend. He loves learning about animals and how to care for them. When he’s not researching and writing about how best to care for animals and pets, you can find him going on adventures with his dog or writing about mythical animals for his book.

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