The Litter-Robot 4 is the most advanced self-cleaning litter box on the market — and at $699, it's also the most expensive. After six months of daily use with two cats, here's our comprehensive, honest review.
What Is the Litter-Robot 4?
The Litter-Robot 4 is an automatic, self-cleaning litter box that uses a patented rotating globe mechanism to sift clumps into a sealed waste drawer after each use. The fourth-generation model adds Wi-Fi connectivity, a built-in OdorTrap system, a weight sensor that tracks each cat's usage, and a sleeker design compared to its predecessor. It works with virtually any clumping litter.
Setup and First Impressions
Unboxing and setup took about 20 minutes. The unit is large — roughly 22 inches tall — so you'll need to plan for its footprint. The app setup was smooth, and within 24 hours both of our cats (ages 3 and 7) were using it without any coaxing. The globe rotation is quieter than the Litter-Robot 3, which was a concern we'd read about in older reviews.
Performance After 6 Months
The Litter-Robot 4 has been virtually maintenance-free. We empty the waste drawer every 5-7 days for two cats, compared to scooping twice daily before. The OdorTrap system genuinely works — our laundry room (where the unit lives) no longer smells like a litter box. The app notifications for full drawer and low litter are accurate and helpful. We've had zero mechanical issues in six months.
Health Monitoring Features
The built-in weight sensor tracks each visit by weight, allowing you to monitor litter box usage patterns over time. This is genuinely useful — we detected that one of our cats was visiting the box more frequently than usual, which prompted a vet visit that caught an early-stage urinary issue. This feature alone could pay for the unit in vet bills saved.
The Honest Downsides
The $699 price tag is the obvious barrier. Replacement carbon filters ($30 every 3 months) and the recommended Litter-Robot litter add ongoing costs. The unit is large and not aesthetically subtle. For single-cat households, the value proposition is harder to justify. And if your cat is under 5 lbs, the weight sensor may not reliably distinguish them from waste.
Final Verdict: Who Should Buy It?
The Litter-Robot 4 is worth every penny for households with 2+ cats, anyone with mobility limitations that make scooping difficult, or cat owners who travel frequently. The health monitoring alone makes it a compelling purchase for health-conscious cat owners. If budget is a concern, consider the Litter-Robot 3 Connect, which can often be found refurbished for around $400.
Litter-Robot 4 — Official Store
Free shipping. 90-day in-home trial. 18-month warranty. Financing available from $58/month.
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