IRIS USA Top Entry Cat Litter Pan vs Kettnjoy Top Entry Stainless Steel Litter Box

Buy the IRIS USA if you want a proven, high-volume design with a built-in litter-catching lid and a shape that fits most rooms. Buy the Kettnjoy if odor and hygiene matter most: its stainless steel pan resists absorbing smells and scratches far better than plastic. The IRIS has far more owner feedback (368 ratings at 4.5), while the Kettnjoy's 4.7 comes from only 29 ratings, so treat it as promising but less proven. Both are top-entry boxes that keep dogs out and cut tracking; the Kettnjoy is the larger, heavier-duty build.

• Choose the IRIS USA if you want a well-reviewed, lighter top-entry box with a grooved lid that acts as a built-in litter mat.
• Choose the Kettnjoy if you want a bigger stainless steel pan that won't hold odors or scratch up over time.