rabbit.reviews
Best Overall

Litter-Robot 4

The gold standard in automatic litter disposal — spacious, repairable, and backed by the only manufacturer offering replacement parts for DIY fixes. Whisker's app is genuinely excellent, tracking weight and bathroom habits with real accuracy.

$699
Pros
  • Largest entry opening (15.8x15.8 inches) among tested models — works for cats up to any size
  • Whisker app is intuitive, tracks weight daily, monitors litter and waste levels with alerts
  • Only manufacturer offering extended warranty and DIY replacement parts
  • Compatible with optional LitterHopper auto-refill attachment
  • Carbon-filtered waste drawer contains odor until you open it
Cons
  • Expensive at $699
  • Sensors can develop 'ghost cat' glitches over time requiring firmware fixes
  • Front-facing hole is harder to refill than Petkit's rotating design
  • LitterHopper attachment has reliability issues — one WIRED reviewer's stopped working after 7 months
Why we recommend it

If you're going to spend serious money on a litter disposal system, this is the one. It's been field-tested longer than any competitor, and the community consensus is overwhelming — it just works.

What the community says

Would it be better to get a nicer robot vacuum or will a litter robot control the litter enough that every other day vacuuming will be okay?

r/catcare · read thread →
What the experts said

The Litter-Robot 4 gets more things right than any other box we've ever tested. It's spacious and repairable, and it's simple to clean and customize.

Wirecutter · read full review →

The Litter-Robot 4 has been a consistent favorite, largely due to its well-designed app. The Whisker app is simple and intuitive. It logs usage and weight daily and historically, and it monitors litter and waste levels, alerting you when either is low.

WIRED · read full review →

The $700 Litter-Robot 4 is still my choice for the best overall self-cleaning litter box. It does a great job and is a few hundred dollars less than the new upgrade.

Good Housekeeping · read full review →

This is the model I use at home with my cats.

WIRED (long-term review) · read full review →