Petlibro Luma vs Whisker Litter-Robot 4
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the Petlibro Luma costs $600 and the Whisker Litter-Robot 4 costs $699, so the Petlibro Luma is $99 cheaper. The Petlibro Luma has a published review score and ranks #12 in our self cleaning litter boxes ranking; the Whisker Litter-Robot 4 is not scored yet. Pick the Petlibro Luma for tracking each cat's habits. Pick the Whisker Litter-Robot 4 for one to four average size cats. The Petlibro Luma wins 4 of 4 points we can measure.
Who wins, point by point
The Petlibro Luma wins 4 of 4 points we can measure. Built from today's prices, the specs and independent tests for these two robots.
| Luma | Litter-Robot 4 | Winner | |
|---|---|---|---|
| Price today | $600 | $699 | Luma |
| 3 year cost | $600 | $1,035 | Luma |
| Warranty | 24 months | 1 year | Luma |
| Cats supported | 10 | 4 | Luma |
- You want to spend less (saves $99)
- You care most about warranty (24 months vs 1 year)
- You care most about cats supported (10 vs 4)
- Best for tracking each cat's habits
- Best for one to four average size cats
- Cat weight
- 2.2 to 22 lb
- Max cats
- Recognizes up to 10 cats
- Litter
- Clumping
- Waste drawer
- 11 L
Open top box with a camera that logs each cat's visits
Full Petlibro Luma review, pros and cons →- Cat weight
- 3 to 25 lb
- Max cats
- Up to 4
- Litter
- Clumping clay
- Waste drawer
- Sealed
Proven Litter-Robot with laser sensing, now Whisker's value pick
Full Whisker Litter-Robot 4 review, pros and cons →Side by side
| Petlibro Luma | Whisker Litter-Robot 4 | |
|---|---|---|
| Price | $600 | $699 |
| 3 year cost | $600 | $1,035 |
| Our score | 7.1/10 | Not scored yet |
| Rank in Litter box | #12 | #23 |
| Status | on sale | on sale |
| Warranty | 24 months (maker) | 1 year (WhiskerCare), extendable to 3 years; 90 day in home trial |
| Cat weight range | 2.2 to 22 lb (maker) | 3 to 25 lb (kittens under 3 lb need semi automatic mode) |
| Max cats | Recognizes up to 10 cats (maker) | Up to 4 |
| Waste drawer | 11 L (2.9 gal), up to 7 days for 2 cats (maker) | Sealed drawer with carbon filter, as little as once every 8 days (maker claim) |
| Sensors | Weight, camera and infrared motion sensors with anti pinch protection | Laser and weight sensors, SmartScale cat weight tracking, SafeCat system |
| App | Petlibro app (iOS and Android); AI waste analysis and video history need a $9.99 per month plan | Whisker app (2.4 GHz WiFi); free 7 day view, Whisker+ optional |
| Litter type | Clumping, tofu and mixed litters; not crystal, pine or ultra fine litter | Clumping clay recommended; crystals only if they pass the screen; plant based and pellet litters not recommended |
| Size | 23.3 x 22.5 x 28.1 in, 17.4 in entrance, 33.01 lb | 22 x 27 in footprint, 29.5 in tall, 15.75 x 15.75 in entry, 24 lb empty |
| Noise | 35 to 47 dB depending on fan speed (maker claim) | No dB rating published; QuietSift motor |
| Best for | tracking each cat's habits | one to four average size cats |
| Skip if | you want no subscription or keep it on carpet | your cat is over 25 lb |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Petlibro Luma
- Cats.com (4.5/5): Easy setup, quick cat acceptance, quiet raking and a sealed drawer; AI analysis needs a subscription and some owners report weight sensor false detections. Source
- Tom's Guide: After several months with two cats, the cats used it more than a Litter-Robot 5 placed beside it, and the app flagged when one cat stopped using the box for a week. Source
Whisker Litter-Robot 4
- Cats.com: Runner Up in the October 2026 roundup; reliable and well built, but the smaller litter bed may not suit large cats. Source
- The Irish Times: Quiet, no smells and a clean tray in a home test; sensors stopped the drum when a cat entered; app cat ID was less accurate for cats of similar size. Source
Questions buyers ask
Which is better, the Petlibro Luma or the Whisker Litter-Robot 4?
The Petlibro Luma has a published review score and ranks #12 in our self cleaning litter boxes ranking; the Whisker Litter-Robot 4 is not scored yet. Pick the Petlibro Luma for tracking each cat's habits. Pick the Whisker Litter-Robot 4 for one to four average size cats.
Which is cheaper?
The Petlibro Luma at $600, versus $699 for the Whisker Litter-Robot 4, checked Nov 4, 2026. Over 3 years with running costs: $600 vs $1,035.
What is the difference between the Luma and the Litter-Robot 4?
Cat weight range: 2.2 to 22 lb (maker) on the Luma, 3 to 25 lb (kittens under 3 lb need semi automatic mode) on the Litter-Robot 4. Max cats: Recognizes up to 10 cats (maker) on the Luma, Up to 4 on the Litter-Robot 4. Waste drawer: 11 L (2.9 gal), up to 7 days for 2 cats (maker) on the Luma, Sealed drawer with carbon filter, as little as once every 8 days (maker claim) on the Litter-Robot 4.
Also consider at this price
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All self cleaning litter boxes, ranked
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