88
Lab ScoreMost of the self-cleaning experience for noticeably less than the category leader. Large capacity, safety sensors, and app control make it the smart-money pick for single and two-cat homes.
Home / Smart Litter Boxes / Litter-Robot 4
Whisker ReviewLitter-Robot 4 Review
93
Lab ScoreThe Lab's Verdict
Best overall: Litter-Robot 4
The class of the category. Quiet, accurate sifting, real odor control, and genuinely useful weight and health tracking per cat. Expensive, and worth it for most multi-cat homes.
What we like
- Excellent automatic sifting and odor control
- Per-cat weight and usage tracking
- Quiet operation and large entry
- Strong app and support
What we do not
- High up-front price
- Large footprint
Specifications
- TypeAutomatic self-cleaning
- TrackingPer-cat weight and health
- NoiseLow
93
Lab ScoreCross-shopping? Litter-Robot 4 vs PETKIT PuraMax 2
Alternatives to consider
86
Lab ScoreA genuinely whisper-quiet self-cleaning box with anti-pinch sensors and UV odor defense. A strong alternative if noise is your main worry in an apartment.
80
Lab ScoreThe low-fuss, lower-cost route into self-cleaning. Crystal trays handle odor well and you genuinely never scoop, though the disposable trays are an ongoing cost.
This review reflects research and aggregated owner feedback; hands-on lab testing is rolling out. Modern Pet Lab is reader-supported and may earn a commission from the verified link above, at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.