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Compare any 2 to 4 products in the same category: maker-published specs, our editor score and verified prices, side by side.
Swap either column to compare any two products in this category. Each column shows the live retailer price where available, with its verification date printed underneath.
| Litter-Robot 4 | PETKIT Purobot Max Pro 2 | |
|---|---|---|
| Price | check current price price verified 2026-11-07 | check current price price verified 2026-11-07 |
| Score | 8.4 / 10 AI Buy Lab Score | 8.6 / 10 AI Buy Lab Score |
| Customer reviews | 14,102 customer reviews on Whisker's page · verified 2026-11-07 | 216 customer reviews on PETKIT's page · verified 2026-11-07 |
| Type | Rotating sifting self-cleaning box | Rotating sifting self-cleaning box |
| Cat weight | 3-25 lbs | 3.3-22 lbs |
| Multi-cat | Up to 4 cats per unit | not published by the manufacturer |
| Entryway | 15.75 x 15.75 in | not published by the manufacturer |
| Footprint | 22 x 27 in | not published by the manufacturer |
| Weight (empty) | 24 lbs | not published by the manufacturer |
| Cleaning cycle | Minutes after exit, delay up to 30 min | not published by the manufacturer |
| Sifting | QuietSift technology | not published by the manufacturer |
| Sensors | Laser and weight sensors, SmartScale | 12 sensors, anti-pinch |
| Waste drawer | Up to 8 days between empties | not published by the manufacturer |
| Wi-Fi | 2.4 GHz only (5 GHz not supported) | 2.4 and 5 GHz |
| Warranty | 1 year included, 3-year plan $129 | not published by the manufacturer |
| Drum capacity | not published by the manufacturer | 76 L |
| Entry | not published by the manufacturer | 10.51 x 10.74 in, 10.03 in high |
| Hands-free cleaning | not published by the manufacturer | Up to 17 days (1 cat) |
| Camera | not published by the manufacturer | AI camera, multi-cat recognition, one-way audio |
| Litter | not published by the manufacturer | Clumping clay, tofu or mixed (sifters) |
| Included | not published by the manufacturer | Fence 2.0 |
| Where to buy | Check PriceProduct page | Check PriceProduct page |
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