cat in self-cleaning litter box with premium cat litter for Litter-Robot
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What’s the Best Litter for Litter-Robot?

Est. read time: 7 min.

Litter-Robot automatic litter boxes might seem like a miracle device to some cat parents, but their self-cleaning magic comes down to the unit’s simple yet elegant engineering. Through a combination of time, rotation, and gravity, the patented sifting process separates your cat’s waste from the clean litter, depositing it into a drawer below. Impressive design aside, we shouldn’t overlook the one thing that holds it all together: litter! To get the best experience for your feline friend AND for yourself, it’s important to make sure you’re buying the best litter for Litter-Robot. So let’s discuss how to pick the best litter for your new Litter-Robot.

woman adding premium clumping litter, the best cat litter for Litter-Robot 4

Clay-clumping cat litter

In order to separate your cat’s waste from the clean litter, our self-cleaning litter box works best with clumping cat litter. Although any clumping litter works, high-quality clay-clumping litter equates to tighter clumps, which leads to less mess in the litter box.

Litter-Robot has flexible cycling options: With Litter-Robot 3 Connect, you can set it to cycle 3, 7, or 15 minutes after your cat exits; with Litter-Robot 4, you can set it at 3, 7, 15, 25, or 30 minutes. You may want to set the timer to 3 minutes if you have dogs roaming the house for “treats.” With a high-quality clumping litter, you can rest assured that the clumps have tightened up quickly, allowing you to use that 3-minute timer setting. 

Low-dust, low-tracking cat litter

low-dust litter running through a man's fingers

Imagine eagerly preparing a fresh bed of litter, only to be greeted by an unwelcome cloud of dust. The best litter for Litter-Robot is a low-dust clumping litter, which helps prevent your cat from spreading dust around your home. Additionally, Litter-Robot 4 comes equipped with a LowDust screen, ensuring that the patented sifting process further minimizes litter dust during each cycle.

Unscented cat litter

One of Litter-Robot’s unique selling points is its ability to help reduce or even eliminate litter box odors. By depositing the waste into a sealed drawer below, the usual unpleasant smells tend to be drastically reduced. However, some cats are simply “stinkier” than others (based on diet, health conditions, and even breed)—and you still might need a little help reducing litter box odors. 

It's a common misconception that scented litter is the solution to this problem. Scented litters, with their added perfumes, merely mask the smell instead of eliminating it. Moreover, research indicates that most cats have a preference for unscented litter. So if your cat stops using the litter box due to its imposing fragrance, you’ve got another problem on your hands!

A man's hands holding sodium bentonite clay for litter

All-natural cat litter

Speaking of litter with added perfumes or chemicals… skip those! The best litter for Litter-Robot is the all-natural kind, with no additives and as few ingredients as possible. This isn’t just about what’s best for Litter-Robot—it’s about what’s best for your cat.  

Recommended and non-recommended litter brands for Litter-Robot 

Litter-Robot’s system requires clumping litter. Litter beads and crystals that are small enough to pass through the screen will also work. However, translucent or white-colored litter (most often seen in crystal litter) may impact the litter level and Drawer Full Indicator (DFI) accuracy in Litter-Robot 4. Cat litters that are strictly absorbent, non-clumping, loose-clumping, newspaper-based, or wood-based pellets should NOT be used.

Litter brands that will work properly with Litter-Robot

  • GreatLitter®. Designed specifically for Litter-Robot. Better odor control and will not stick to the liner inside.  
  • Fresh Step cat litter. Heavy litter. We recommend keeping 1/2 inch below fill line.
  • Dr. Elsey cat litter. Heavy litter. We recommend keeping 1/2 inch below fill line.
  • Scoop Away cat litter. Heavy litter. We recommend keeping 1/2 inch below fill line.
  • Sustainably Yours cat litter. Fast clumping. Use a large grain version for less litter tracking.
  • Pretty Litter. Crystal-based, will work in Litter-Robot 3. Not recommended for Litter-Robot 4 (see below). 
  • Arm & Hammer Naturals. Corn-based, clumping cat litter. Will work in Litter-Robot.
  • Naturally Fresh cat litter. Walnut-based, only the clumping kind would work.

Litter brands that WILL NOT WORK properly with Litter-Robot

  • Skoon cat litter. Non-clumping clay litter.
  • Feline Pine cat litter. Pellets, will not sift in Litter-Robot. 
  • Pretty Litter. Not recommended for Litter-Robot 4: Translucent or white-colored litter (most often seen in crystal litter) may impact the litter level and Drawer Full Indicator (DFI) accuracy.
  • Purina Yesterday's News cat litter. Paper-based and will not sift properly as most are non-clumping.
  • Okocat litter. Wood pellets, will not sift in Litter-Robot. 
  • Catit Pea Husk Litter. Pellet-shaped. Will not sift properly in Litter-Robot. 

The best litter for Litter-Robot

white cat with premium cat litter, the best litter for Litter-Robot

The best litter for Litter-Robot should meet all the qualities listed above. And there’s one cat litter out there that does! GreatLitter® is:

  • High-quality clay-clumping litter: Each granule is just right; not too big and not too small. When a clump forms, the uniform granules pack together efficiently and hold tight. 
  • Low-dust, low-tracking litter: By sun-drying the clay, preserving its soft texture and then screening it for ideal particle size, our cat litter is very low-dust making it one of the best low tracking litter packages around. 
  • Unscented litter that locks in odors: Our cat litter is the most efficient at drawing up liquid and sequestering that telltale ammonia scent caused by urine degrading in the litter box.
  • All-natural litter: This litter has just one all-natural ingredient—sodium bentonite, dried with the power of the sun. There are no additives, no fillers, and no perfumes. 

This cat litter was designed for our self-cleaning litter boxes, making it the best litter for Litter-Robot. If you're looking for a cat litter that doesn't track, provides better odor control, and reduces litter dust, this is it! See what our customers say about it: 

I love this kitty litter because it’s all natural, no perfumes! It lasts a long time because it completely encapsulates the waste and deposits it into the bag which keeps the remaining kitty litter clean and dry! I just add more when it runs low. Most importantly my cat loves it. It’s a bit more expensive but equates to savings because it lasts longer. Highly recommend. - Edward L

Other benefits of this premium cat litter

GreatLitter® isn’t just good for your Litter-Robot and your cat. It’s great for you, as well!


A farmer riding a tractor at sunset

Delivered to your door

Skip the store: You’ll quickly get used to the convenience of not having to visit a pet store, lug around a heavy box of litter, and haul it inside your home. Our litter is delivered right to your doorstep. No travel or interaction required! 

Flexible subscription options

Set it and forget it: You can subscribe to our litter, so you no longer have to keep cat litter on your shopping list. Subscription options are flexible, too: Choose from 20-lb., 40-lb., and 60-lb. bags delivered monthly, bimonthly, or quarterly.

Harvested in the USA

Our partner’s family-owned-and-operated ranch is located in the geographic center of the world’s only supply of high-quality sodium bentonite clay—Wyoming, USA! This gives us access to superior raw material for cat litter.

So, now you know: GreatLitter® is the best litter for Litter-Robot

How much litter should you use in Litter-Robot?

Once you’ve picked the ideal litter for your Litter-Robot, it’s important to make sure you’re not over-filling or under-filling your cat’s self-cleaning litter box.  

The optimal litter bed level inside Litter-Robot is at or just below the fill line inside the globe.

White siamese cat sitting in Litter-Robot globe with bag of litter sitting next to it - what's the best litter for Litter-Robot?