Petkit PuraMax 2 vs Petkit Purobot Max Pro 2

The Purobot Max Pro 2's 1080p camera with night vision and 210-degree view is the single biggest differentiator in this category. For multi-cat households, watching which cat is using the box and tracking individual health patterns is genuinely valuable. The catch: multi-cat face recognition degrades significantly once the free Care+ subscription ends. You're essentially renting the feature that justifies the price premium, which is a legitimate reason to walk away.

The Purobot Max Pro 2's self-sealing waste bag holds up to 17 days of waste for one cat and sends an app alert when it's full. The PuraMax 2 has no automatic low-litter sensor and requires manual checks or calendar reminders. In practice, this is the difference between a system that manages itself and one that still requires you to stay on top of it. The tradeoff is that the Max Pro 2's proprietary bags cost $35 for three — an ongoing expense the PuraMax 2 doesn't have.

The PuraMax 2 runs a triple-threat odor system: sealed waste bin, an odor-eliminator attachment, and an active citrusy deodorizing spray. Reviewers specifically call out that it smells good, not just neutral — that's a meaningful distinction. The Purobot Max Pro 2 uses dual odor eliminator cartridges plus a sealed bin, which is solid but less aggressive. Neither smells bad, but the PuraMax 2's approach is more proactive and doesn't lock you into proprietary bag purchases.

The Purobot Max Pro 2's 43% larger opening compared to its predecessor — and its 22 lb weight capacity — makes it the only responsible choice if you have a Maine Coon, Ragdoll, or any large breed. WIRED's reviewer specifically confirmed their large cat used it easily. The PuraMax 2 doesn't publish a weight limit in the same way, and its more compact footprint, while great for apartments, means it's genuinely not designed for big cats. This isn't a close call if your cat is over 15 lbs.