How many fit
12 of the 24 models checked meet every need here: “See which cat used the box”.
12 models fit, out of 24 checkedPicked for one job
Best litter box for tracking several cats
Top pick
Whisker Litter-Robot 4 with Step and Waste Drawer Liners
LR4 has no camera, while Purobot Ultra brings camera-based identification.
Why it suits this job
- Automatic cycles begin at 3 pounds.
- Cabinet width is 22 inches.
- The catch
- A timid cat may still find the globe closed in.
- Go with PETKIT Purobot Ultra if
- what decides it is knowing which cat used it
More reasons we picked it
- Standard-weight clumping clay litter is what Whisker recommends, since plant-based types typically do not sift properly.
- The plan compared here covers up to 4 cats.
We may earn a commission from qualifying Amazon purchases. How we make money
Purobot Ultra identifies cats by camera, and LR4 does without one.
By the numbers
What the data shows
What we found across the automatic litter boxes we compare, plus the checked facts behind each finding.
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “See which cat used the box”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Whisker Litter-Robot 4 with Step and Waste Drawer Liners |
|
| |
| PETKIT Purobot Ultra |
|
|
Decision guide
How to choose for this job
Pick LR4 to stay camera-free, or Purobot Ultra to identify cats by camera.
What tips the decision
Only Ultra has a camera, and that costs some privacy. Both support at least four cats.
Why Litter-Robot 4 with Step and Waste Drawer Liners comes first
Cabinet width is 22 inches, and automatic cycles begin at 3 pounds.
When the other option fits better
Go with PETKIT Purobot Ultra when what decides it is knowing which cat used it.
What this page can’t tell you
- Acceptance by the cat is not guaranteed.
- Expect odor to vary with litter, diet and cleaning frequency.
- Manual operation may be needed for very young kittens.
2 options
The top pick and the alternatives
Whisker, Litter-Robot 4
Litter-Robot 4 with Step and Waste Drawer Liners
Automatic cycling starts at 3 pounds, and the cabinet is 22 inches wide.
Top pick ifcover two or more cats and keep tabs on which one used it
Key facts
- A cat must weigh at least 3 pounds for automatic mode.
- With a 22 by 27 inch footprint, the cabinet is 22 inches wide.
The catch
A timid cat may still find the globe closed in.
PETKIT, Purobot Ultra
PETKIT Purobot Ultra
The cabinet is 20.94 inches wide, and automatic cycles require at least 3.3 pounds.
Pick this instead ifwhat decides it is knowing which cat used it
Key facts
- Automatic cycling starts at 3.3 pounds.
- Cabinet width is 20.94 inches.
The catch
Some homes won't accept a camera inside the litter area.
Ready to buy
See today’s price and what owners say
Top pick for this job
Whisker Litter-Robot 4 with Step and Waste Drawer Liners
Automatic cycles begin at 3 pounds.
See price & reviews on AmazonPick this instead if
PETKIT Purobot Ultra
what decides it is knowing which cat used it
See price & reviews on AmazonWe may earn a commission from qualifying Amazon purchases. How we make money