Litter-Robot 4: Frequently Asked Questions (FAQ)

What makes Litter-Robot 4 different from other self-cleaning litter boxes?

Litter-Robot 4 is the latest evolution of the highest-rated WiFi-enabled, automatic, self-cleaning litter box for cats. With over 20 years of customer feedback driving product innovation, Litter-Robot 4 features new sensor and litter-sifting technology for enhanced odor control, cat safety, and real-time tracking of waste and litter levels through the Whisker app.

How does Litter-Robot 4 compare to Litter-Robot 3 Connect?

Core features of Litter-Robot models have always included a patented sifting system, odor management, multi-cat design, cat safety features, and easy-to-clean modular components.  The new Litter-Robot 4 advances these core features with the latest technology, including the optional OdorTrap® System to neutralize litter box odors and the SafeCat System with OmniSense™ Detection for enhanced safety and real-time tracking of waste and litter levels. Litter-Robot 4 also features a whisper-quiet cleaning cycle, an enlarged waste drawer, and a wider opening to maximize cat comfort. Learn more here.

Why is Litter-Robot the highest-rated self-cleaning litter box in the world?

We invest in engineering and American assembly operations to ensure that we deliver the best to pet parents worldwide! With tens of thousands of reviews rating Litter-Robot five stars, cats and cat parents alike love the product. Cat parents love that Litter-Robot reduces or even eliminates litter box odors throughout their home, that they're buying less litter thanks to the efficient clean cycle, and that they finally have freedom from scooping the litter box. 

Will my cat actually use Litter-Robot 4?

Yes. Most cats use Litter-Robot within several days to a week of setting it up. Those already familiar with a covered litter box may be quicker to investigate Litter-Robot 4. The trick is to ease your cat into transitioning to Litter-Robot. You can avoid startling your kitty by leaving Litter-Robot switched off until you notice your cat has used it. We recommend that you place Litter-Robot in the same location as the old litter box. You can leave the old litter box near Litter-Robot for a short time. Take a cup of litter from the old litter box and add it to the clean litter in Litter-Robot. The scent will be familiar, and your cat should be inclined to check it out. Learn more about acclimating your cat. 

Will Litter-Robot 4 eliminate litter box odors?

Litter-Robot 4 features an optional OdorTrap® System designed to neutralize litter box odors. This system uses the combination of a sealed waste drawer and carbon filter to reduce odor. You can opt to replace the carbon filter with OdorTrap® Packs to eliminate litter box odors through natural chemistry. Most users suggest that Litter-Robot drastically reduces and or even eliminates litter box odors. 

Can kittens use Litter-Robot 4?

Yes. Litter-Robot 4 uses laser and weight sensor technology to detect when your cat enters and exits the globe, which triggers the countdown timer and cleaning cycle. The SmartScale™ will not recognize kittens that weigh less than 3 lbs. Therefore, kittens that weigh less than 3 lbs can use Litter-Robot 4, but not in automatic mode. Until they weigh enough, we recommend using your Litter-Robot 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 gained sufficient weight to activate the SmartScale™.

Does Litter-Robot 4 have a weight limit?

No, Litter-Robot 4 does not have a weight limit. With entryway dimensions of 15.75"H x 15.75"W and interior globe dimensions of 15"-17"H (depending on litter level) x 19"W x 18"D, almost any domestic cat can fit comfortably inside the globe. 

Does Litter-Robot 4 require special litter?

No, Litter-Robot 4 does not require special litter. Litter-Robot works well with almost any clumping or scoopable litter. Litter beads and crystals that are small enough to pass through the screen will also work. Litter-Robot is not compatible with litters that are strictly absorbent, non-clumping, loose-clumping, newspaper-based, or wood-based pellets. We suggest all-natural GreatLitter® for Litter-Robot. 

What accessories are available for Litter-Robot 4?

The Litter-Robot 4 has many custom-fit accessories to enhance your experience. It includes a standard fence, but you can purchase the Mini Fence if you'd prefer a smaller fence. You can also install a webcam of your choice for better visibility into kitty's bathroom habits using the Litter-Robot 4 Camera Mount. If your Litter-Robot 4 sits on carpet and you want to improve the accuracy of SmartScale™ weight readings, try the Litter-Robot 4 Carpet Tray. Check out odor control components such as OdorTrap® Packs or Litter-Robot 4 Carbon Filters too!

Can I purchase a ramp for Litter-Robot 4?

The Litter-Robot 4 Ramp will be available for purchase later in 2023. 

 If you require a ramp for your Litter-Robot 4 in the meantime, check out these options:

• If you already own a Litter-Robot 3 Ramp, purchase our Ramp Adapter.
• If you don’t own a ramp, purchase our Litter-Robot 3 Ramp + Adapter Kit.

What is the WhiskerCare™ 1-Year Warranty?

WhiskerCare™ is a comprehensive protection plan that covers your Litter-Robot from top to bottom for 1 year. A 3-year plan is available for purchase. Our hassle-free plan covers accidental damage, power surges, mechanical and electrical breakdowns, and software support. You’ll have access to our dedicated US-based customer service and software experts. During your warranty period, we will resolve Litter-Robot issues at no charge, including free shipping both ways. There are never deductibles or hidden fees. 

Can I use the app with both iOS and Android?

The Whisker app is compatible with Apple mobile devices with iOS 13.0 or greater and Android devices 8.0 or greater. Both the iOS app and the Android app are available to download.

Can I connect the app to multiple Litter-Robots?

Yes. You can onboard multiple WiFi-enabled Litter-Robots to the same app. If others in your household want to use the app, they can simply download the app to their device and log in with the same account.

Will Litter-Robot 4 connect to my WiFi network?

Litter-Robot 4 requires a 2.4 GHz WiFi signal and IPv4 or IPv6 addressing (5 GHz band not supported).

User Manuals

Download Litter-Robot 4 user manual
Download Litter-Robot 4 quick start guide

* SmartScale™ technology to record cat weight is most accurate on a firm surface, not carpeting.

Questions? Visit whiskersupport.com