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Litter-Robot® EVO
As low as
$599
or
Litter-Robot EVO is the most streamlined Litter-Robot. It's the automatic, self-cleaning litter box that’s compact enough to fit almost anywhere. Perfect for first-time cat owners, one- or two-cat households, and smaller spaces.
- The simplified way to stop scooping
- Compact without compromise: Works for up to 2 cats, 3-19 lbs
- Never Scoop Again®
- Enhanced odor control with a carbon-filtered waste drawer
- Track cat weight, activity, and litter box updates in the Whisker® app*
- Track individual pet insights with a Whisker+ membership
- Go up to 7 days between emptying the waste drawer for a one-cat household
- Built to last: Designed and assembled in the USA
The next little big thing.
Small in size. A huge deal for your cat.
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Never Scoop Again®Automatically sifts out waste after every use.
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Perfect for smaller cat familiesWorks for up to two cats.
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Compact designSimplified, streamlined design fits in more spaces, including small apartments.
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Odor controlDirty clumps fall into a tightly sealed, carbon-filtered waste drawer.
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Cats acclimate easilyOver 95% of cats adjusted comfortably to using Litter-Robot.*
Big features. Smaller footprint.
The award-winning, self-cleaning, odor management technology of Litter-Robot is now sleeker, smaller, and here to simplify your life.
Self-cleaning litter box
Clean, compact design automatically sifts out waste after every use with QuietSift® technology. Your cat always has a fresh bed of litter, and you never have to scoop again.
- Highest-rated self-cleaning litter box brand
- Go up to 7 days between emptying with a one-cat household
Ultimate odor control
The dirty clumps automatically fall into a tightly sealed waste drawer with a built-in carbon filter, designed to lock in litter box odors and keep your home smelling fresh.
- Advanced multi-layered carbon filtration system
- Add OdorTrap® Packs to further neutralize litter box odors
Cleaner cat care
An always-fresh bed of litter means no more dirty paws, less litter tracking, and a home that stays fresh.
- Tracks less litter for cleaner paws and floors
- Patented sifting system reduces dust
Stay connected from anywhere
Get real-time notifications and monitor usage with the Whisker app. Unlock advanced insights and weight identification with a Whisker+ membership.
- Peace of mind with real-time updates
- 100k+ 5-star Whisker app reviews
Smart. Sleek. Simple.
Same footprint
as a traditional box.
as a traditional box.
Explore Litter-Robot in 360
See every angle of the Litter-Robot design.
Technical specifications
Dimensions
| Power | 15 Volt DC |
|---|---|
| Height | 27.6” |
| Footprint | 20.6’’ x 24.3’’ |
| Entryway | 14.85’’ x 14.85” |
| Headroom (interior) |
14.5” |
| Weight (empty) | 21.5 lbs. |
What's included
| Litter-Robot® EVO | 1 |
|---|---|
| Power Supply | 1 |
| Fence | 1 |
| Waste Drawer Liners | 5 |
| Carbon Filter | 1 |
| Step | 1 |
Litter‑Robot EVO w/ Step
Power Supply w/ pet-safe cord
Fence
Waste Drawer Liners
Carbon Filter
Reviews
Reviews displayed on this website may include reviews placed on other Whisker sites, including Litter-Robot.com and Litterbox.com. We pride ourselves on transparency and non-profanity. All reviews submitted to Litter-Robot.com and Litterbox.com are unedited.
Which Litter-Robot is right for you?
Compare our self-cleaning litter boxes.
Frequently asked questions
Cat behavior
How can I get my cat to use Litter-Robot?
Over 95% of cats acclimate to Litter-Robot*, and most begin using it within a few days to a week. (*Based on stated reasons for customer returns of Litter-Robot 4 and 3 over a one-year period). It's natural for some cats to be initially uncertain or wary of new objects in their territory. Litter-Robot EVO is designed to be as cat-friendly as possible, featuring QuietSift® technology that minimizes noise during the cleaning cycle. The cleaning cycle won’t begin until minutes after your cat has exited the automatic litter box, and you can extend the delay up to 30 minutes for skittish cats.
To ease the transition, place Litter-Robot where the old litter box was and, for a short time, keep both nearby. Mixing a cup of used litter into the clean litter in the Litter-Robot helps provide a familiar scent. You can also leave Litter-Robot turned off until your cat has tried it. With these steps—and a little patience—most cats adapt quickly, especially if they’re already used to a covered litter box. Learn more about acclimating your cat.
Can large cats use Litter-Robot EVO?
Litter-Robot EVO is suitable for cats that weigh 3-19 lbs, including large breeds like Maine Coons.
With an entryway width of 14.85” and an interior height of 14.5”, most domestic cats can fit comfortably inside the globe.
If you have an especially large or tall cat, consider Litter-Robot 5 or Litter-Robot 4.
Can kittens use Litter-Robot EVO?
Yes. Kittens that weigh at least 3 lbs can safely use Litter-Robot EVO in automatic mode. The unit relies on weight sensors to detect when your cat enters and exits the globe, which then triggers the countdown timer and cleaning cycle.
For kittens under 3 lbs, we recommend using your Litter-Robot EVO in "semi-automatic" mode to keep your kitten safe and relieve you from litter box scooping. For "semi-automatic" mode, leave Litter-Robot powered off or unplugged. When you see your kitten has used it, wait about 7 minutes for the waste to clump, then power it on. Litter-Robot will automatically perform a clean cycle. Afterward, power it off again. Continue this supervised, semi-automatic mode until your kittens have reached 3 lbs to activate the SmartScale®.
Features
What is the difference between Litter-Robot EVO and Litter-Robot 4?
Litter-Robot EVO is a more compact, streamlined version of Litter-Robot 4.
It’s ideal for households with one to two cats, offered at a lower price point, and comes with fewer built-in app insights.
(You can upgrade to Whisker+ at any time with either model to unlock additional app insights and features and to track individual cat insights.) Litter-Robot 4 is suitable for up to four cats, offers more advanced features such as litter- and waste-level sensing, and can be equipped with premium accessories like LitterHopper.
Will Litter-Robot eliminate all litter box odors?
Because waste is promptly removed and contained in the base, typical litter box odors will be significantly reduced with Litter-Robot.
Litter-Robot EVO features a sealed waste drawer and Carbon Filter to reduce odors.
You can opt to combine the Carbon Filter with OdorTrap Packs to eliminate litter box odors through natural chemistry.
We also recommend using an unscented, all-natural litter like GreatLitter to help with odor control.
*What insights do I receive on the Whisker app with Litter-Robot EVO?
With Litter-Robot EVO, you will be able to see 7 days of robot event history, including cycles, visits, and weight recordings.
Upgrade to Whisker+ to see cat-specific data, deeper insights about weight and bathroom visits, and data history back to 2 years.
What insights do I receive with a Whisker+ membership?
If you upgrade to a Whisker+ membership with Litter-Robot EVO, you’ll receive multi-cat monitoring of cat weight and Litter-Robot visits. This includes daily recap reports and device notifications, and 2 years of weight trends, visit trends, duration trends*, weight-based identification, and historical data. (*Duration tracking implemented in September 2025; no prior data history before September 2025.)
How it works
How often do I need to replace the Litter-Robot Waste Drawer Liner, Carbon Filter, or OdorTrap® Packs?
Replace the Waste Drawer Liner whenever you need to empty the waste drawer.
How often you empty the waste drawer depends on the number and size of your cats.
You may only need to empty the Litter-Robot EVO waste drawer as low as once every 7 days.
For optimal odor absorption, we recommend replacing the Carbon Filter and OdorTrap® Packs every 2-4 weeks, but replacement frequency is up to you and your cats' usage patterns.
Does Litter-Robot require special litter?
The best litter for Litter-Robot is clumping clay litter. We recommend a high-quality, standard-weight, clay-based clumping litter, such as GreatLitter.
Some silica gel litter beads and crystals can also be used with Litter-Robot, as long as they pass through the screen.
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 EVO and are therefore not recommended.
Alternative, plant-based litters typically do not work with Litter-Robot as these may not be filtered properly through the sifting system.
Litters that do not work in Litter-Robot are the strictly absorbent, non-clumping or loose-clumping litters, newspaper-based litters, and absorbent wood pellet litter.
Can Litter-Robot EVO be used on carpet?
Yes, Litter-Robot EVO can be used on any type of flooring.
How do I set up my Litter-Robot?
Visit our Getting Started page to view our online setup guide (including tips to acclimate your cat), the user manual, and accessory installation guides.
Customer service
If I am not satisfied with my Litter-Robot, how do I get a refund?
Buy with confidence knowing that your investment is backed by our 90-day in-home trial.
If you or your pet are not satisfied with your robot appliance, simply return it for a refund of the purchase price.
You only have to pay return shipping.
If you have purchased your robot appliance through a source other than Whisker.com or Litter-Robot.com, you must coordinate the return with that source and according to their product return policy.
Visit our Returns page for more information.
What is the WhiskerCare® Warranty?
WhiskerCare® is a comprehensive protection plan that covers your Litter-Robot from top to bottom for 1 year at no cost.
A 3-year extended plan is included with most bundles, or you can purchase an extended plan.
Our hassle-free plan covers accidental damage, power surges, mechanical and electrical breakdowns, and software support.
You’ll have access to our dedicated customer experience specialists, software experts, and US-based service and repair team.
During your warranty period, we will resolve robot issues at no charge, including free shipping both ways.
There are never deductibles or hidden fees.
Where does Litter-Robot ship from?
Litter-Robot ships from our assembly and fulfillment center located in Juneau, Wisconsin.
* Shipping disclaimer
We offer free shipping to the contiguous United States on all orders of $49 or more. (Excludes Alaska, Hawaii, Puerto Rico.)
- 90-day in-home trial
- 1-year warranty
- Free shipping (ex. AK/HI/PR)
