Luma Smart Litter Box vs Litter-Robot 4
Cross-brand multi-cat rivals at a similar price
Whisker Litter-Robot 4
Buy now$699
Whisker lists the unit from $699; colour and bundle options raise the price.
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Where the published data differs
Every line below is computed from the two manufacturers’ own figures. Attributes neither brand publishes are omitted.
- Luma Smart Litter Box lists at $599.99, $99.01 below Litter-Robot 4 at $699.
- Minimum cat weight: Litter-Robot 4 3 lbs versus Luma Smart Litter Box 2.2 lbs (36% more). Published data favours Luma Smart Litter Box.
- Proprietary waste bags required: published for Luma Smart Litter Box, not for Litter-Robot 4.
- Litter type required: Luma Smart Litter Box — Clumping, tofu and mixed litters; not crystal, pine or ultra-fine; Litter-Robot 4 — Clumping clay litter.
- Cleaning cycle trigger: Luma Smart Litter Box — After use, confirmed by weight, visual and infrared sensors; Litter-Robot 4 — SmartScale weight sensor starts a countdown after the cat exits (3 lb minimum to register).
- Odor control method: Luma Smart Litter Box — Carbon deodoriser with sealed drawer liner; Litter-Robot 4 — Sealed waste drawer with carbon filter.
- Power source: Luma Smart Litter Box — Corded electric, 12V/5A adapter; Litter-Robot 4 — AC power.
Full specification comparison
| Attribute | Luma Smart Litter Box | Litter-Robot 4 |
|---|---|---|
| Multi-cat suitable | Yes | Yes |
| Minimum cat weight | 2.2 lbs | 3 lbs |
| Maximum cat weight | 22 lbs | Not published |
| Waste drawer capacity | 11 L | Not published |
| Litter type required | Clumping, tofu and mixed litters; not crystal, pine or ultra-fine | Clumping clay litter |
| Proprietary litter required | No | No |
| Proprietary waste bags required | Yes | No |
| Subscription required | No | No |
| Cleaning cycle trigger | After use, confirmed by weight, visual and infrared sensors | SmartScale weight sensor starts a countdown after the cat exits (3 lb minimum to register) |
| Adjustable cycle delay | Not published | Yes |
| App control | Yes | Yes |
| Weight sensing | Yes | Yes |
| Health monitoring | Yes | Yes |
| Odor control method | Carbon deodoriser with sealed drawer liner | Sealed waste drawer with carbon filter |
| Entry height | 17.4 in | Not published |
| Interior dimensions | Not published by either | Not published by either |
| Footprint | 23.3 x 22.5 x 28.1 in | Not published |
| Operating noise | Not published by either | Not published by either |
| Power source | Corded electric, 12V/5A adapter | AC power |
| Battery backup | Not published by either | Not published by either |
| Warranty | Not published | 12 months |