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Refurbished Litter-Robot: What You Get for $100 Off
Whisker's reconditioned Litter-Robot 4 costs $599, the same as a new EVO. It keeps the full 90-day trial and warranty. Here is which one to buy.
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Is the Litter-Robot 4 Worth Buying at Costco?
Costco sells the Litter-Robot 4 for a dollar over the bare unit price direct, with a three-year warranty in the box. Here is what you give up.
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Which Litter-Robot 4 Should You Buy on Amazon?
Amazon lists the Litter-Robot 4 under eight overlapping bundle names at one fixed price. Here is what each carton holds, and what you give up buying there.
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The Litter-Robot 3 Is Discontinued: What to Buy Instead
Whisker discontinued the Litter-Robot 3 in late 2025 and stock has run out. Here is what replaced it, what to buy now, and when to repair the one you own.
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Litter-Robot 4 vs Catlink Pro-X: Which One to Buy?
The Litter-Robot 4 costs $699. The Catlink Scooper Luxury Pro-X lists near $470 and adds cameras. Here is which self-cleaning box to buy, and why.
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Catlink Litter Box Review: The Scooper Luxury Pro-X
Our Catlink litter box review of the Scooper Luxury Pro-X, and how it compares with the Litter-Robot 4 on price, health features, and support.
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Litter-Robot 4 vs Neakasa M1 Plus: Which to Buy?
The Litter-Robot 4 is an enclosed $700 box. The Neakasa M1 Plus is an open-top one at about half the price. Here is which fits your cat, and why.
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Litter-Robot 4 vs 5: Which One Is Worth It?
The Litter-Robot 5 costs about $100 more than the 4, and the upgrade is worth it only for some cats. Here is which box to buy, and why.
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Litter-Robot 4 Review: Who Should Buy It (and Who Shouldn't)
What the Litter-Robot 4 self-cleaning litter box does well, where it falls short, and which cats, homes, and budgets it fits best.