Below. And the integrated odor trap system neutralizes stubborn litter box odors litter robot's multi-cat. Design is suitable for up to four cats.

Let's take a closer look at the three laser sensors called curtain sensors located in the bezel. Debris such as dust or cat fur can interfere with the operation of these sensors.

The Litter Robot 4 improves on its predecessor with a sleeker design (it's a bit less wide, so it should fit better in small rooms), as well as a larger opening for big cats. It's also Wi-Fi connected, which makes it easy for you to check on litter and waste levels with Whisker's app.

SmartScale uses an advanced algorithm to determine which cat is using Litter-Robot 4. SmartScale analyzes individual weight data and automatically displays it in your Pet Profile. See when each cat used the Litter-Robot 4 and track their daily weight over time.

You can connect the Litter-Robot 4 to the Whisker app and track your cats' usage. The sensor will recognize each cat by weight, and you can follow how often each cat visits the box and watch for trends in usage and any changes to your cat's weight.

Litter Robot 4 Wait Time Settings. The Wait Time, or Cycle Delay, is the elapsed time starting from when your cat exits the Globe until the unit starts a Clean cycle. It can be set for 3, 7, 15, 25, or 30 minutes. The default Wait Time is 7 minutes.

The Litter-Robot 4 is equipped with OmniSense™ detection that utilizes laser and weight sensor technology to provide real-time litter and waste drawer levels. Omnisense™ also supports the SafeCat system which continuously analyzes 4 safety zones to ensure your cat is always safe.

Litter-Robot 3 is equipped with infrared emitters and sensors located above the Waste Drawer that check if the drawer is full each time the Globe returns to the Home position. Once a full Waste Drawer is detected, the unit will indicate it is full with a blue flashing light.

• Best Overall: Whisker Litter-Robot 4 at Litter-robot.com.
• Still Great: Litter-Robot 3 Litter Box at Chewy.
• Best Odor Control: Petkit Self-Cleaning Cat Litter Box at Amazon.
• Best Budget: Pet Zone Pet Zone Smart Scoop at Chewy.
• Best Crystal Litter:
• Best Smart Home Ready:
• Best for Multiple:

5 Best Litters for Your Litter Robot

• Fresh Step Febreze Freshness. Fresh Step Febreze Freshness is on a different level of litter.
• Fresh Step Simply Unscented.
• Purina Tidy Cats Unscented Litter.
• Arm & Hammer Clump & Seal.

BIA works by sending a small and painless electrical signal through your body. The signal passes more easily through water and lean tissue, like muscle, than it does through fat. So, by measuring how long it takes for the current to pass through your body, the scale can estimate your body fat percentage.

The Litter-Robot 4 is Wi-Fi enabled. The sensor will recognize each cat by weight, and you can follow how often each cat visits the box and watch for trends in usage and any changes to your cat's weight. (Always share any alarming changes with your vet!)