Question 1

Which is better, Litter-Robot 4 or PetSafe ScoopFree Crystal Self-Cleaning?

Accepted Answer

Based on our testing, the Litter-Robot 4 scores higher overall at 9.2/10. The Litter-Robot 4 scored 9.2/10 and the PetSafe ScoopFree Crystal Self-Cleaning scored 8.8/10 in our Best Self-Cleaning Litter Boxes 2026 evaluation.

Question 2

Is the Litter-Robot 4 worth it over the PetSafe ScoopFree Crystal Self-Cleaning?

Accepted Answer

The Litter-Robot 4 scores 9.2/10 while the PetSafe ScoopFree Crystal Self-Cleaning scores 8.8/10. The Litter-Robot 4 is our "Best Overall Self-Cleaning" pick in the Best Self-Cleaning Litter Boxes 2026 category.

Litter-Robot 4 vs PetSafe ScoopFree Crystal Self-Cleaning: Which to Buy?