Litter-Robot 4 Best Friends® Bundle

As low as $734 Regular Price $784

Whisker is partnering with Best Friends Animal Society to save the lives of cats across America.
Bundle also includes:
Litter-Robot LitterTrap® Mat-Black Black LitterTrap® Mat
OdorTrap®  3-Pack OdorTrap® 3-Pack
GreatLitter® (20lb) GreatLitter® (20lb)

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Litter-Robot 4 Best Friends® Bundle
Litter-Robot 4 Best Friends® Bundle

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    With the Litter-Robot x Best Friends® Bundle, you’re getting Litter-Robot 4, a bag of Premium Cat Litter, and a special selection of our customers’ favorite accessories—all while supporting Best Friends Animal Society, the nation’s leading animal welfare organization dedicated to ending the killing of dogs and cats in America’s shelters by 2025. With every purchase, 1% of sales will go towards covering the cost of cat adoptions at Best Friends pet lifesaving centers.

    Litter-Robot is the official litter box of Best Friends Animal Society. 

    This customer favorites bundle includes:

    • Litter-Robot 4 (step, fence, and carbon filter included)
    • Litter Trap™ Mat in black
    • Odor-eliminating OdorTrap® Packs (3)
    • GreatLitter®  (20 lb. bag - may ship separately)
    • WhiskerCare™ 1-Year Warranty


    Litter-Robot 4 front tech specs
    Litter-Robot 4 side tech specs
    • Power: 15 Volt DC
    • Entryway: 15.75’’ x 15.75”
    • Weight (Empty): 24lbs.
    • Footprint: 22’’ x 27’’


    • What is Whisker’s Best Friends Animal Society partnership?

      Founded in 1984, Best Friends Animal Society is a leading animal welfare organization working to end the killing of dogs and cats in America’s shelters by 2025.  Partnering with a network of more than 4,200 animal welfare groups, shelters, and community programs nationwide, Best Friends is working to Save Them All®. The organization also operates the Sanctuary in Kanab, Utah – the nation's largest no-kill sanctuary for companion animals.  
      Whisker has donated $150,000 to support Best Friend Animal Society’s lifesaving work across the country, including the Best Friends Cat World Sanctuary in Kanab, Utah. Together, we have saved over 9,000 cats!

      We’ve also donated products for use at the Best Friends Animal Society and its life-saving centers throughout the country. Whisker is proud that our Litter-Robot products and technology are being used to provide a clean, odor-free, and monitored environment for the rescue cats housed in its facility, making litter box chores significantly easier for volunteers, so they have more time for other cat care needs. Litter-Robot is now the Official Litter Box of Best Friends Animal Society. 

      As the brand’s largest philanthropic partnership to-date, this $150,000 contribution to Best Friends Animal Society allows Whisker to make a direct positive impact within the pet community. Whisker will donate 1% of all Best Friends Bundle Sales back to the organization from June 2023 through May 2024. Learn more about the partnership here.

    • How does my purchase at Whisker support Best Friends Animal Society?

      For each Best Friends Bundle (LR3 + Fence, Ramp, Liners and Odor Trap at $614 or LR4 + Step, Fence, Carbon filter, Litter Trap, Odor Trap and 20 lb. litter at $734) Whisker will donate 1% of the purchase price to Best Friends Animal Society to cover cat adoption fees from March 1 through April 15, 2024 Best Friends Animal Society. Learn more about the partnership here
    • How do I use the Litter-Robot Litter Trap™ Mat with Litter-Robot?

      Place the Litter-Robot Litter Trap™ Mat only in front of Litter-Robot. Do not place it underneath Litter-Robot (fully or partially).
    • How do I use OdorTrap™ Packs with Litter-Robot 4?

      It’s easy! Download our Litter-Robot 4 OdorTrap™ installation guide.
    • How often do I need to replace the Litter-Robot Waste Drawer Liner 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. For two average-sized cats, twice per week is typical. For a single cat, once per week is usually sufficient. For optimal odor absorption, we recommend changing the OdorTrap™ Pack every 2 weeks, but replacement frequency is up to you and your cats' usage patterns. 
    • 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
    • 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 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 premium cat litter for Litter-Robot (one bag is included in this bundle!). 
    • 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 (2 packs included in this bundle) to eliminate litter box odors through natural chemistry. Most users suggest that Litter-Robot drastically reduces and or even eliminates litter box odors. 
    • 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? Will I receive my cat litter first? 

      You may receive your cat litter separately from your Litter-Robot 4 and other accessories.

      Please view our Litter-Robot 4 shipping schedule

      Your order will be prioritized 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.
    • User Manuals

    • Reviews Disclaimer

      Litter-Robot 4 Best Friends® Bundle page reviews reflect Litter-Robot 4 product page reviews.

    • Donation Disclaimer

      Whisker will donate 1% of the purchase price to Best Friends Animal Society for each Best Friends® Bundle (LR3 + Fence, Ramp, Liners and Odor Trap at $659 or LR4 + Step, Fence, Carbon filter, Litter Trap, Odor Trap and 20 lb. litter at $759) sold from June 1, 2023 to May 31, 2024, up to a maximum of $100,000 with a guaranteed minimum donation of $50,000.

    Bundles that give back

    1% of all Best Friends bundle sales will go towards cat adoptions at their lifesaving centers—that means more cats in happy homes.

    man holding kitten

    Help put cats in happy homes

    While you enjoy never having to scoop again!

    tabby cat using Litter-Robot 4 with woman laughing in foreground

    Simpler, cleaner cat care

    Say goodbye to messy scooping and tracked litter for good.

    Women emptying Litter-Robot

    Multi-cat friendly

    A fresh bed of litter every time makes cats happier. One Litter-Robot can handle up to four cats.

    Two cats with Litter-Robot 4
    • Self-cleaning

      Sifts out waste after every use so you never have to scoop again.

    • Pet monitoring

      Track your cat’s weight with SmartScale®, follow their bathroom usage and get waste level alerts.

    • Odor control

      Clumps automatically fall into a tightly-sealed drawer, keeping odors at bay.

    • Multi-cat friendly

      One Litter-Robot is suitable for up to four cats–removing the need for multiple boxes.

    The smartest litter box

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