Spec-by-spec
Head to head
Contenders from Self-Cleaning Litter Boxes, every metric lined up. The winning value in each row is outlined.
PETKIT PuraMax 2 Automatic Self-Cleaning Litter Box with App Control #3 in Self-Cleaning Litter Boxes 
Price
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Check price on Amazon →
Rating
★★★★★
★★★★★
Category rank
#3
#32
Cleaning Effectiveness
Rake-based, full sift cycles
Rotating globe with clumping delay; minimizes pancaking & smearing
Odor Control
Sealed drawer + N50 2.0 carbon filter
Open-top design; no sealed drawer or carbon filter mentioned
App & Safety Sensors
Full app tracking + 11 sensors, anti-pinch
No app; 7 infrared sensors + touch pedal + mechanical limiter (strong safety, no tracking)
Waste-Drawer Capacity
76L interior, 7L waste bin, 15-day hold
Capacity unknown; no multi-cat suitability data provided
Ease Of Maintenance
Drawer empties easily; accessible design
Modular design, tool-free disassembly, dedicated access step
Noise
Moderate rake cycle noise
Not documented in available sources
Value
$299.99 (23% off list); premium mid-range
$159.99 (20% off list); strong safety & simplicity for mid-range price
Verdict
Best app-enabled automatic litter box for multi-cat homes
Best for app-free simplicity and senior cat accessibility
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