ZDNET90
The reviewer calls the Litter-Robot 4 life-changing, praising the no-scoop cleaning, odor control, quiet running and health tracking.
Whisker Litter-Robot 4
9 expert reviewsChecked 1 Nov 2026
Quick answer
The Whisker Litter-Robot 4 has a critic score of 83 out of 100 from 9 professional reviews, including ZDNET, CNET and 9to5Toys. 8 of 9 recommend it, and scores range from 77 (Engadget) to 90 (ZDNET). 2 of the scores are printed by the outlets and 7 are our estimates from the review text. Most praised: quiet (5 of 9); smart features (5 of 9). Most common complaints: price (7 of 9); size and weight (3 of 9).
Reviews checked 1 Nov 2026
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Best for: Best overall
Our verdict
9 professional reviewers tested the Whisker Litter-Robot 4, and 8 recommend it. Most praised: quiet and smart features. Most common complaint: price.
The catch: It is very expensive, at around $700.
Critic agreement: High
Scores run from 77 to 902 printed scores, 7 estimated · printed scores only: 84
7 of these 9 outlets print no score. We estimated theirs from the review text and corrected for the known tendency of estimates to run high.
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What do critics say about the Whisker Litter-Robot 4?
CNET79
A solid, quiet and well-engineered robotic litter box with flawless sifting and a helpful app.
9to5Toys89est.
The reviewer is very happy with the Litter-Robot 4 and the LitterHopper add-on, finding it a clear step up from the previous generation for odor, litter use and app tracking.
Business Insider83est.
In a tested litter box guide the Litter-Robot 4 is the best automatic pick, valued for hands-off cleaning, safety and tracking.
Forbes Vetted83est.
In a tested roundup the Litter-Robot 4 is named the best-value Litter-Robot and praised for space, quiet running and odor control.
Good Housekeeping83est.
A four-year user says the Litter-Robot 4 is worth buying if the budget allows, thanks to no scooping, quiet running and hidden waste.
Digital Trends83est.
The reviewer finds the self-scooping box works well and would recommend it to cat lovers.
Tom's Guide83est.
Ranked second in a robotic litter box roundup after more than a year of use by the writer's cats, who used it heavily.
Engadget77est.
It reduces litter chores and masks odor, but pairing problems, sensor faults, missed cycles and litter spillage make it hard to trust at $699.
Scores are converted to 0–100. "est." means the outlet gave no number, so we estimated one from its verdict. How we score
What critics praise most
Quiet5 of 9
Smart features5 of 9
Cleaning performance3 of 9
What critics dislike most
Price7 of 9
Size and weight3 of 9
Common questions
Is the Whisker Litter-Robot 4 worth it?
Most critics think so: 8 of 9 recommend it. It is very expensive, at around $700.
Do critics agree about the Whisker Litter-Robot 4?
Agreement is high: scores range from 77 (Engadget) to 90 (ZDNET), a spread of 13 points across 9 reviews. Reviewers broadly agree.
What do critics dislike about the Whisker Litter-Robot 4?
Price (7 of 9 reviews), Size and weight (3 of 9 reviews).