Whisker Litter-Robot 4 Self-Cleaning Litter Box, White

A rotating globe that sifts clumping litter after each visit, with a 3 lb minimum for automatic mode, cat weight tracking in the app and a sealed waste drawer for up to 4 cats.

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The Whisker Litter-Robot 4 is a self-cleaning litter box shaped like a globe. A few minutes after your cat leaves, the globe rotates, sifts the clumps out of ordinary clumping litter and drops them into a sealed drawer in the base.

Who it suits

Homes with one to four adult cats where daily scooping is hard to keep up with, and owners who want visit counts and weight trends in an app. It is a poor fit for tiny kittens, small rooms and very nervous cats.

Key facts

  • Automatic mode for cats of at least 3 lbs; lighter kittens should use it unplugged (Whisker)
  • Standard weight clumping clay litter; plant based litters usually do not work (Whisker)
  • Laser and weight sensors, plus SmartScale weight logging in the Whisker app (Whisker)
  • Drawer may go about 8 days between emptying, depending on your cats (Whisker)
  • 22 x 27 in footprint, 29.5 in tall, 2.4 GHz Wi-Fi, 1 year warranty (Whisker)

What reviewers say

Engadget found it quiet and excellent at hiding smells after months with three cats, but ran into app pairing trouble, sensor faults and missed cycles, and said the cats took about a week to accept it. Cats.com liked the quiet sifting and per cat weight tracking, and noted urine sticking to the liner and that some cats still preferred an open box.

Pros and cons

  • Pro: Uses regular clumping litter
  • Pro: Visit and weight tracking
  • Pro: Strong odor control
  • Con: Big footprint
  • Con: High upfront cost plus ongoing liners and filters
  • Con: Occasional sensor faults

Cautions

  • Keep kittens under 3 lbs on manual scooping with the unit unplugged.
  • Leave a regular box out during the transition.
  • Watch the app data and call your vet if your cat strains or visits much more often.

Additional information

Brand

Whisker

Type

Rotating globe, sifting

Litter

Clumping clay (standard weight)

Cat weight

3 lbs minimum, up to 4 cats

Waste drawer

Up to about 8 days between emptying

Size

22 x 27 x 29.5 in, 24 lbs

Power

15 V DC plug in, 2.4 GHz Wi-Fi

App

Whisker app: visits, weight, drawer level

Consumables

Drawer liners, carbon filter, optional OdorTrap packs

Warranty

1 year, extended plan optional