Are expensive models like the Litter-Robot 4 worth it over budget boxes?

Premium boxes command a large price gap and reviewers tie that to build quality, app maturity, and support programs rather than fundamentally better waste removal. Budget and mid-priced boxes such as the Fumoi or PETKIT PuraMax 2 draw strong real-world satisfaction in verified reviews, though buyers should weigh recurring refill-bag costs and the higher failure-report rate seen in some lower-priced units.