If you have average-sized cats weighing up to 17.6 lbs and prioritize a lower upfront cost with no ongoing subscription for AI features, the PETKIT Purobot Max Pro 2 is ideal. This buyer values quiet operation (35-45 dB), relies on AI camera monitoring for health insights, and appreciates multi-cat recognition without recurring fees. They seek a reliable self-cleaning solution with an 8L waste bin, accepting a slightly smaller capacity for the financial benefit of a one-time purchase.

The PETLIBRO Luma is perfect for owners with larger cats up to 22 lbs or multiple felines, prioritizing maximum waste capacity (10.98L) and comprehensive safety via triple sensors. This buyer is willing to invest more initially and pay for a subscription to unlock full AI waste analysis, live video, and detailed usage tracking for up to 10 cats. They value advanced technology for detailed health monitoring and ultimate convenience, ensuring less frequent waste emptying and robust pet protection during cycles.