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Litter-Robot 4
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CA $999
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Never scoop again. Litter-Robot 4 solves the litter box problem with automatic, self-cleaning technology that quietly provides a fresh bed of litter after every use, and reduces odours and litter tracking. Join over 1 million Litter-Robot customers.
Stop scooping cat litter, neutralize odours, and give your cat a clean litter bed every time with Litter-Robot 4, the highest-rated automatic litter box on the market. Elegantly designed to maximize comfort for kittens and large cats alike, Litter-Robot 4 features cutting-edge litter-sifting technology that separates your cat’s waste from the clean litter after each use. Reduce litter tracking, and monitor litter and waste levels in real-time with the Whisker app. Stay on top of your cat’s health with smart insights about your cat’s weight and litter usage.
- Never scoop again®
- Drastically reduce litter box odours
- Monitor litter box usage right from your phone
- Best litter box for multiple cats: one supports up to 4 cats
- Includes a fence, step, and carbon filter
- Add a Carpet Tray to use Litter-Robot 4 on any surface
Specs
- Power: 15 Volt DC
- Entryway: 40 cm x 40 cm
- Weight (Empty): 10.9 kg
- Footprint: 56 cm x 68.6 cm
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 odour 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, odour 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 neutralise litter box odours 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 QuietSift™ cleaning cycle, an enlarged waste drawer, and a wider opening to maximise cat comfort. Learn more with our Litter-Robot 3 Connect vs Litter-Robot 4 comparison guide.
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 odours 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?
Most likely. Many 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 odours?
Litter-Robot 4 features an optional OdorTrap™ System designed to neutralise litter box odours. This system uses the combination of a sealed waste drawer and carbon filter to reduce odour. You can opt to replace the carbon filter with OdorTrap™ Packs to eliminate litter box odours through natural chemistry. Most users suggest that Litter-Robot drastically reduces and or even eliminates litter box odours.
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 recognise kittens that weigh less than 1.3 kgs. Therefore, kittens that weigh less than 1.3 kgs 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 40cm Height x 40 cm Width and interior globe dimensions of 38-43 cm Height (depending on litter level) x 48.2 cm Width x 45.7 cm Depth, 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.
What accessories are available for Litter-Robot 4?
The Litter-Robot 4 has 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. 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 odour control components such as OdorTrap™ Packs or Litter-Robot 4 Carbon Filters too!Can I use any type of bag in the waste drawer?
Yes, you can use any bag that fits in the waste drawer. However, please note that waste level readings may be inaccurate when using a dark bag, especially when the drawer is empty. As clumps start to collect in the drawer, the readings will become more accurate. For the most precise waste drawer readings and a seamless experience, we highly recommend using Litter-Robot Waste Drawer Liners.Can I purchase a ramp for Litter-Robot 4?
The Litter-Robot 4 Ramp is now available for purchase and is particularly helpful for senior cats with mobility issues.
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. An extended 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 experience 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.
What happens if there are other cats in the home without pet profiles using the Litter-Robot 4?
When other cats without a pet profile use the Litter-Robot 4, weight readings will be seen as unhealthy data. When too many data points are classified as unhealthy, SmartScale will be turned off. If you are an individual or organisation that fosters or rescues cats, you’ll need to set up a Pet Profile for each cat in order for SmartScale to function and filter data properly.
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).
When will my Litter-Robot 4 ship?
Please view our Litter-Robot 4 shipping schedule.
Your order will be prioritised in our queue based on your order date. You can reference your order confirmation email if you’re unsure of your order date. You will also receive email confirmation when your unit ships.
Can Litter-Robot 4 be used on carpet or uneven surfaces?
Yes. However, SmartScale™ technology to record cat weight is most accurate on a firm surface, not carpeting. If you plan to use Litter-Robot 4 on carpet that's 3mm+ thick or on uneven flooring, you can improve the accuracy of SmartScale™ weight readings by purchasing our specially designed Carpet Tray that sits between the unit and the floor. The carpet tray is not required for Litter-Robot 4 to function.
How do I update my firmware?
The Litter-Robot 4 is able to receive over-the-air firmware updates as Whisker releases new functionality and enhancements. You'll need to update your firmware manually within the Whisker App. You can visit here for detailed steps.
User Manual
*Cat Recognition and Weight Disclaimer
Some features not available until late 2022. Additional hardware required to distinguish cats of similar size. SmartScale™ technology to record cat weight is most accurate on a firm surface, not carpeting.
How is Scoops Saved calculated?
For each cycle, the tracker increments the Scoops Saved count by one, estimating the total number of scoops you’ve avoided. The count may vary with the occasional cycle that does not scoop litter or cycles that clean up multiple cat bathroom visits, but on average, each cycle represents one scoop saved!
My Scoops Saved number doesn’t look right; what can I do?
If your scoops saved doesn’t look right you can reset it back to zero by navigating to your robot settings screen and clicking the option to reset your scoops saved. Please note resetting your scoops saved cannot be reversed!
Litter-Robot 4 LitterHopper™ FAQs
How does the LitterHopper work?
The Litter-Robot 4 LitterHopper is designed to automatically maintain the optimal Litter-Robot 4 litter level within the globe. The optimal litter bed level inside Litter-Robot 4 is at or just below the MAX fill line inside the globe. Litter-Robot 4 uses OmniSense® Detection to measure the height of the litter bed level at the end of each clean cycle. If the sensors determine that the litter bed level is below optimal, then the LitterHopper will dispense litter into the globe at the start of the NEXT clean cycle. Note: You must update your Litter-Robot 4 to the latest firmware version through the Whisker app before installing the LitterHopper. If you do not currently use the Whisker app, please download the app and update your firmware.
Can I choose a LitterHopper color that’s different from the color I selected for Litter-Robot 4?
No, the LitterHopper will match your selected Litter-Robot 4 color (black or white).
Do the LitterHopper and Litter-Robot 4 ship separately?
Yes.
How do I install the Litter-Robot 4 LitterHopper and Bonnet?
No tools are required: Download the installation guide to make sure you are willing to install this accessory.
What type of cat litter can I use with the LitterHopper?
We recommend using clay-clumping cat litter with Litter-Robot 4, although 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.
How much cat litter does the LitterHopper hold and dispense?
The LitterHopper holds approximately 13 cups of cat litter. It dispenses roughly half a cup of litter at a time, for a total of approximately 25 dispenses. (Note: The LitterHopper does not dispense litter during every cleaning cycle, only when litter levels drop below optimal.)
How do I know my LitterHopper™ is calibrated to optimal litter levels?
When you initially enable the LitterHopper, ensure the litter level inside the globe is optimal: just below the MAX fill line. Whatever the litter level is when you enable the LitterHopper will automatically be set as the optimal litter level. This means your LitterHopper will not dispense until the litter reaches below that level.
If you need to reset your optimal litter level, please reference the "Calibrate the optimal litter level" section in the Litter-Robot 4: LitterHopper not dispensing support article.How many pounds of litter should be added to Litter-Robot 4 with the LitterHopper™?
Will the Whisker app tell me when the LitterHopper is empty?
Yes, the Whisker app will notify you when your LitterHopper is likely empty. The app closely monitors your litter bed level. If it detects a decreasing litter bed level trend over several cleaning cycles, the app will notify you that litter levels are getting low, indicating that the LitterHopper is likely empty. Please note: We are continuing to improve upon this feature; in some cases, the feature may not work as intended.
Is the LitterHopper included in my Litter-Robot 4 WhiskerCare™ Warranty?
The LitterHopper automatically includes a 1-year warranty, regardless of whether your Litter-Robot 4 is still under warranty, and is not eligible for coverage under our 3-year extended warranty.
Is the LitterHopper™ anti-tip guard compatible with the Litter-Robot 4 Carpet Tray?
Yes, they are compatible. The carpet tray includes a support extension for the anti-tip guard.
Are there any special cleaning instructions?
While cleaning your Litter-Robot 4, be careful that the LitterHopper key (the device used to direct litter from the LitterHopper into Litter-Robot 4) doesn’t fall out. Note that the key is designed to fit loosely in the globe, thus allowing the globe to rotate freely around it. We recommend regularly cleaning the LitterHopper dispensing area with a dry cloth or vacuum to avoid buildup of dust, loose litter, or clumps.
Why didn’t the LitterHopper add litter to my globe?
When you initially install the LitterHopper, you’ll need to start with a full bed of litter that is at or just below the MAX fill line. Litter will be added ONLY when needed and only at the start of the NEXT clean cycle. For further troubleshooting, visit our support portal.
What do I do with my original Litter-Robot 4 Bonnet?
Feel free to recycle or throw away your original bonnet. (Be sure to follow local regulations.) Or you can store it in the box your LitterHopper arrived in for safekeeping.
Can I return the LitterHopper but keep my Litter-Robot 4?
If you purchased the LitterHopper at the same time as your Litter-Robot 4, you will need to return your entire unit for a LitterHopper refund. We will then ship a standard Litter-Robot 4 to you.
Weight-based ID disclaimer
When Litter-Robot 4 is equipped with the LitterHopper, weight-based ID technology will not function for cats that weigh more than 25 pounds.
Can I use the Litter-Robot 4 Backup Battery with the LitterHopper?
No, the backup battery is not compatible with the LitterHopper.
Never scoop again®
Litter-Robot’s patented sifting process quietly separates cat's waste from the clean litter, ensuring a fresh bed of litter for every use.
Maximum odour control
The optional OdorTrap® System neutralizes litter box odours with its improved waste drawer sealing and carbon filter. Add OdorTrap® Packs to the integrated holder for enhanced odour control.
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Self-cleaning
Sifts out waste after every use so you never have to scoop again.
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Pet monitoring
Track your cat’s weight with SmartScale®, follow their bathroom usage and get waste level alerts.
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Odour control
Clumps automatically fall into a tightly-sealed drawer, keeping odours at bay.
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Multi-cat friendly
One Litter-Robot is suitable for up to four cats–removing the need for multiple boxes.
Multi-cat friendly
Litter-Robot 4 is the best litter box for multiple-cat households, featuring a wide opening to maximize cat comfort and providing a clean litter box for up to 4 cats of any breed or size.
Cleaner paws, tidier home
Enhanced litter-sifting technology in this automatic litter box limits dust and ensures a clean place for your cat’s paws, while the complimentary fence and step greatly reduce litter tracking out of the box.
Save time and money
Get time back every day by not scooping and using up to 50% less cat litter.
Quiet cleaning
QuietSift® self-cleaning cycles benefit skittish cats (and won’t wake you up at night).
Intuitive design
The control panel features 5 buttons and an LED display for easy operation.
Compact size
Same footprint as a traditional large litter pan. No need to make space or elaborate installation plans.
Smooth transition
Many cats acclimate within a week. If only they could talk, they’d tell you how great it is.
Easy setup
Use any clumping cat litter and regular trash bag. Or dream big—add some of our custom accessories.
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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.
Ask a question.
This depends on the type of litter you're using. For example, with the recommended standard-weight clay-clumping litter, approximately 17 pounds of litter is used when added to both the Litter-Robot 4 globe (just below the MAX fill line) and the LitterHopper.