Purobot Max 3 vs Self-Cleaning Litter Box
Cross-brand multi-cat rivals at a similar price
Petkit Purobot Max 3
Buy now$399.99
Currently listed price on petkit.com; the page shows a higher regular price.
▲ +$24 · Oct 8, 2026Buy now
Where the published data differs
Every line below is computed from the two manufacturers’ own figures. Attributes neither brand publishes are omitted.
- Self-Cleaning Litter Box lists at $399, $0.99 below Purobot Max 3 at $399.99.
- Waste drawer capacity: Self-Cleaning Litter Box 9 L versus Purobot Max 3 7 L (29% more). Published data favours Self-Cleaning Litter Box.
- Maximum cat weight: Purobot Max 3 22 lbs versus Self-Cleaning Litter Box 17.6 lbs (25% more). Published data favours Purobot Max 3.
- Warranty: Purobot Max 3 24 months versus Self-Cleaning Litter Box 12 months (100% more). Published data favours Purobot Max 3.
- Minimum cat weight: Purobot Max 3 3.3 lbs versus Self-Cleaning Litter Box 2.2 lbs (50% more). Published data favours Self-Cleaning Litter Box.
- Operating noise: Self-Cleaning Litter Box 40 dB versus Purobot Max 3 35 dB (14% more). Published data favours Purobot Max 3.
- Litter type required: Purobot Max 3 — Clumping clay, tofu, corn or bentonite litters; Self-Cleaning Litter Box — Clumping bentonite, tofu, crystal or mineral sand (no strip-shaped litter).
- Cleaning cycle trigger: Purobot Max 3 — Automatic after the cat exits, with app scheduling; Self-Cleaning Litter Box — Automatic after each visit, once the cat has left.
Full specification comparison
| Attribute | Purobot Max 3 | Self-Cleaning Litter Box |
|---|---|---|
| Multi-cat suitable | Yes | Yes |
| Minimum cat weight | 3.3 lbs | 2.2 lbs |
| Maximum cat weight | 22 lbs | 17.6 lbs |
| Waste drawer capacity | 7 L | 9 L |
| Litter type required | Clumping clay, tofu, corn or bentonite litters | Clumping bentonite, tofu, crystal or mineral sand (no strip-shaped litter) |
| Proprietary litter required | No | No |
| Proprietary waste bags required | Yes | Not published |
| Subscription required | No | Not published |
| Cleaning cycle trigger | Automatic after the cat exits, with app scheduling | Automatic after each visit, once the cat has left |
| Adjustable cycle delay | Yes | Not published |
| App control | Yes | Yes |
| Weight sensing | Yes | Yes |
| Health monitoring | Yes | Yes |
| Odor control method | Four-part OdorVoid system with sealed waste bin | Plasma sterilization plus fresh air system and sealed waste drawer |
| Entry height | 8.03 in | Not published |
| Interior dimensions | Not published by either | Not published by either |
| Footprint | 24.4 x 21.2 x 21.7 in | 22.8" D × 20.3" W × 21.4" H |
| Operating noise | 35 dB | 40 dB |
| Power source | AC adapter, 12V/2A | 12 V DC adapter |
| Battery backup | No | Not published |
| Warranty | 24 months | 12 months |