Whisker

About Whisker

Whisker is the pet technology company behind the Litter-Robot line of self-cleaning litter boxes, sold through its official store at litter-robot.com (the corporate site is whisker.com). Verified on those official pages in November 2026, the two Whisker products we cover are the Litter-Robot 4 — rated for up to 4 cats from 3–25 lbs, with a 90-day in-home trial — and the Feeder-Robot, its automatic pet feeder. Both connect to the Whisker app for visit and cat-weight tracking.

Our Whisker coverage is editorial and unsponsored. The Litter-Robot 4 carries an AI Buy Lab Score of 8.4 out of 10 on our published 10-point weighted index, and it is compared head-to-head with the PETKIT Purobot Max Pro 2 in our dedicated comparison. Whisker products also appear in our best lists for multi-cat litter boxes and picky eaters; the Litter-Robot 4 is covered in full in our review. Every specification, price and review count on those pages was verified against the official record on the date shown.

Products by Whisker

• Litter Robots

  Litter-Robot 4

  Rated for up to four cats and cats from 3 to 25 lbs — the widest published multi-cat envelope in its category

  Editor score: 8.4 / 10

  Price: check current price

  Check PriceRead Review
• Automatic Feeders

  Whisker Feeder-Robot

  1–8 meals a day in 1/8-cup increments — the finest published portion control here

  Editor score: 8.0 / 10

  Price: check current price

  Check PriceRead Review

Coverage (4)

• Best List

  Best Automatic Cat Feeder for Picky Eaters: 5 Editor Picks

  Five automatic feeders ranked for picky cats — compared on portion control, food types, exclusivity and offline behaviour from their published specifications.

  View List
• Best List

  Best Automatic Litter Box for Multiple Cats: 5 Editor Picks

  Five automatic litter boxes ranked for multi-cat homes — compared on cat count, waste interval, entry size and litter compatibility from their published specifications.

  View List
• Review

  Litter-Robot 4 Review

  A published-specification review of the Litter-Robot 4: cycle behaviour, laser and weight sensors, multi-cat limits, the 14,102-review record on Whisker's own page, consumables and warranty.

  Read Review
• Comparison

  Litter-Robot 4 vs PETKIT Purobot Max Pro 2

  Two rotating self-cleaning litter boxes compared head to head from their own pages: capacity, multi-cat limits, sensors vs camera, litter compatibility, warranty and listed price.

  Read Comparison