Whisker Litter-Robot 3 tech specs: Dimensions: 24.25 x 27 x 29.5 inches | Power: 15 Volt DC | Weight: 24 pounds | # of cats: Up to 4
This model from Whisker is a little cheaper than the Litter-Robot 4, but still has much of the same technology. Plus, Whisker offers tons of accessories for your litter box, such as stairs to help older cats reach the box, a litter trap mat, a camera mount to keep an eye on your kitty, and even cleaning spray and wipes.
Like the Litter-Robot 4, the automatic sifting process removes dirty litter from the clean, keeping foul smells out of your home. You also have the option to control the litter box from the Whisker app.
The main difference between the Litter-Robot 3 and the Litter-Robot 4 is that the 4 has an enlarged waste drawer and a wider opening, as well as a quieter sifting cycle.