Side-by-side comparison based on expert reviews and community consensus.
Petkit Purobot Max Pro 2
Best PremiumWhisker Litter-Robot 4
Best OverallPrice
$441-$560
$699-$749
Summary
The only automatic litter box with a built-in 1080p wide-angle camera and AI multi-cat face recognition. WIRED named it their current #1 pick for its compact design and health-monitoring capabilities.
The most field-tested, repairable automatic litter box on the market with the best app and odor control. Wirecutter, WIRED, Good Housekeeping, and CNET all independently named it their top pick.
Pros
- Built-in 1080p camera with 210-degree view, night vision, and audio recording
- AI multi-cat facial recognition tracks which cat used the box
- 43% larger opening than previous model, fits cats up to 22 lbs
- Self-sealing waste bag stores up to 17 days of waste for one cat
- Works on both 2.4 GHz and 5.0 GHz Wi-Fi networks
- One of the largest interior spaces and 15.8-inch entry opening among tested models
- Intuitive Whisker app logs usage, weight, litter levels, and waste drawer status
- Only brand offering extended warranty and DIY replacement parts
- Compatible with optional LitterHopper auto-refill attachment
- Whisper-quiet cleaning cycle with reliable cat-detection sensors
Cons
- App is overcrowded with ads for other Petkit products
- Cat recognition becomes unreliable once free Care+ subscription expires
- Camera is not movable or adjustable
- Ongoing subscription cost for full Care+ features ($4–$12/month)
- More expensive than the Litter-Robot 4
- Expensive at $699 before accessories
- Front-facing opening is harder to refill litter into than Petkit's rotating design
- Sensors can develop 'ghost cat' false detections over time
- No built-in camera (requires separate camera-mount kit accessory)
- Some cats take weeks or refuse to transition to it
Our take
If you want to actually monitor your cat's health — not just automate scooping — the Purobot Max Pro 2's camera and AI tracking make it the most informative litter box you can buy right now.
If you're spending $700 on a robot litter box, get the one that's been proven over years of real-world use — the LR4 is the standard everyone else is measured against, and it still wins.
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