For years, when it’d come up in conversation that I have an automatic litter box, everyone always asked: “Oh, you have a Litter-Robot?”
The product category as a whole really got the Roomba treatment — the automatic assumption that every automatic litter box is a Litter-Robot, just like many people assume that every robot vacuum is a Roomba. So when Whisker released a more apartment-friendly version of the Litter-Robot in fall 2025, it was time to find out firsthand: Is the Litter-Robot actually that much more iconic than all of the other automatic litter boxes?
I retired my Leo’s Loo Too litter box to my parents’ house and put the Litter-Robot EVO in its place. Here’s how it’s going after six months.
What’s different about the Litter-Robot EVO?
The Litter-Robot EVO is just under two inches slimmer (20.6 inches wide) and almost three inches shallower (24.5 inches sticking out from the wall) than the Litter-Robot 4, making it the most compact Litter-Robot model. Aesthetically, I’m not a huge fan of the super rectangular automatic litter boxes, so I like that the EVO retains the minimalist circular design that makes a Litter-Robot recognizable.
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