If you're a budget-conscious pet owner prioritizing ease of cleaning and essential smart features, the HoneyGuaridan SL900 is ideal. At $299, it offers excellent value with its IPX5 waterproof body, allowing for full rinsing. You'll appreciate the motion and weight sensors for pet safety and 14 days of hands-free waste disposal. It's perfect for those who want a reliable automatic litter box for multiple cats without breaking the bank, even if it means buying the backup battery separately.

The Neakasa M1 Plus is best for pet owners who prioritize advanced sensor technology and superior odor control and are willing to invest more. Its 6-array rotary sensors provide enhanced detection accuracy, and the 11.2L waste bin combined with the Pull & Wrap system significantly reduces odors and extends emptying intervals up to 14 days. This unit suits those who want a premium, highly effective, and low-maintenance solution, especially if strong odor control is a primary concern, despite requiring proprietary waste bags.