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What is the Best Litter for Your Litter-Robot? (2021) — Tried & Tested Options

Want to pamper your cat or kitten with the right litter? Your cat is the boss, so make sure you’re getting safe and efficient litter. Our team will share our ultimate picks for your Litter-Robot that will make your cat purr with happiness.

5 Best Litters for Your Litter Robot

1. Fresh Step Febreze Freshness 

Fresh Step Scented Litter with The Power of Febreze

Fresh Step Febreze Freshness is on a different level of litter. It may be scented, but it’s not the kind of odor that will bother your nose. 

In fact, Febreze Freshness was quite pleasant to smell. Now, what about its clumping? We’re happy to say Fresh Step scored high marks both in firmness and clump speed. 

Packaging-wise, it was effortless to open and pour into the litter box without any hassle. The best part? The overall weight was a lot heavier than most litter so you use less litter and save more!

However, we did find one small drawback. Fresh Step came with a little bit of dust, but in very low contents. Now if you’re allergic or prefer unscented litter, check out our next pick below! 


  • Clump speed: Fast
  • Clump firmness: High firmness
  • Dust: Very low
  • Scattering: Low 
  • Odor control: Mild, Fragrant
  • Easy to pour: Yes

2. Fresh Step Simply Unscented 

This is the better option if you’re concerned about the side effects that scented litters may have on your cat. 

Admittedly, this one ranks lower compared to Fresh Step’s Febreze Freshness because of the lower clump firmness and the lack of an easy-to-pour lid. 

Despite that, several cat owners still claim to have had a good experience with this litter.


  • Clump speed: Fast
  • Clump firmness: Medium
  • Dust: Low 
  • Scattering: Low
  • Odor control: Medium
  • Easy to pour: No

3. Purina Tidy Cats Unscented Litter 

Purina Tidy Cats Clumping Cat Litter

This is the happy compromise between the two Fresh Step litters. It’s unscented and has activated charcoal giving you a 10-day odor control when used as directed. What we also love is that it features a low dust formula for a clean pouring experience. 

It forms strong clumps, making waste transfer smoothly to the robot’s waste bin. Another plus is that it is 100% natural. A small downside is that there’s quite a bit of scatter when cycling. 


  • Clump speed: Fast
  • Clump firmness: High, no crumbling upon rotation
  • Dust: Low
  • Scattering: Medium
  • Odor control: High
  • Easy to pour: Very easy

4. Arm & Hammer Clump & Seal 

Arm & Hammer Clump & Seal Litter, MultiCat

Arm & Hammer takes the win when it comes to keeping the dust scatter to an absolute zero. Aside from that, there’s little to no tracking as your cat steps out of the device.

However, despite its claim of “rock hard clumps”, you’ll notice slight crumbling as the Litter-Robot rotates. 

This means some waste particles are left along with the clean litter. Also, it does seem to have a light scent that might irritate some cats and owners. The price point is also higher than most kitty litters providing similar benefits.


  • Clump speed: Medium
  • Clump firmness: Low, crumbles upon rotation 
  • Dust: Very low
  • Scattering: None
  • Odor control: Medium, up to 7 days
  • Easy to pour: No

Honorable Mentions

  • Best Overall - With all its features, it's a no-brainer that the Fresh Step Febreze Freshness might be your Litter-Robot’s new best friend.
  • Best Unscented - Purina Tidy Cats Unscented Litter is your best bet for unscented litter.
  • Best For Cleanliness -  Arm & Hammer Clump & Seal does have its cons, but it sure is the best at keeping dust at bay.

What’s the Best Litter for Your Litter-Robot?

Finding the right balance between what’s good for your cat and what works well with your Litter-Robot is difficult. 

Ultimately, the best litter creates a balance of less cleanups on your part and a comfortable poop session for your cat. 

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