Database / Comparison
Petkit Purobot Max 3 vs Whisker Litter-Robot EVO
20 attributes with data · 1 unpublished by any · Robot Litter Boxes
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- Petkit Purobot Max 3
- Whisker Litter-Robot EVO
| Attribute | ||
|---|---|---|
| Availability | Buy now | Buy nowManufacturer US/Canada PDP live; as low as $599 with Add to cart / InStock signals (verified 2026-09-12). |
| Price | $399.99Currently listed price on petkit.com; the page shows a higher regular price. | $599Manufacturer starting price on whisker.com ("as low as $599"); bundles cost more. |
| Category | Robot Litter Boxes | Robot Litter Boxes |
| Multi-cat suitable↑ | Yes | Yes |
| Minimum cat weight↓ | 3.3 lbs | 3 lbs |
| Maximum cat weight↑ | 22 lbs | 19 lbs |
| Waste drawer capacity↑ | 7 L | Not published |
| Litter type required | Clumping clay, tofu, corn or bentonite litters | Clumping clay litter |
| Proprietary litter required↓ | No | No |
| Proprietary waste bags required↓ | Yes | No |
| Subscription required↓ | No | No |
| Cleaning cycle trigger | Automatic after the cat exits, with app scheduling | Weight sensors start the cycle after the cat exits |
| Adjustable cycle delay↑ | Yes | Yes |
| App control↑ | Yes | Yes |
| Weight sensing↑ | Yes | Yes |
| Health monitoring↑ | Yes | Yes |
| Odor control method | Four-part OdorVoid system with sealed waste bin | Sealed waste drawer with carbon filter |
| Entry height↓ | 8.03 in | Not published |
| Footprint | 24.4 x 21.2 x 21.7 in | 20.6 x 24.3 in |
| Operating noise↓ | 35 dB | Not published |
| Power source | AC adapter, 12V/2A | 15 Volt DC / AC adapter |
| Battery backup↑ | No | Not published |
| Warranty↑ | 24 months | 12 months |
Highlighted values lead the row where an attribute has a defined better direction (↑ higher is better, ↓ lower is better).
Not published by any selected robot
These attributes are part of the comparison set, but no manufacturer here states a value. We leave them blank rather than filling them in.
- Interior dimensions