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
Check price on Amazon →
Check price on Amazon →
Rating
★★★★★
★★★★★
Category rank
#3
#10
Cleaning Effectiveness
Rake-based, full sift cycles
Rotary rake with multi-angle scanning
Odor Control
Sealed drawer + N50 2.0 carbon filter
Brush seal + composite ring, <5% leakage
App & Safety Sensors
Full app tracking + 11 sensors, anti-pinch
Full app + 6-array infrared, activity tracking
Waste-Drawer Capacity
76L interior, 7L waste bin, 15-day hold
11.2L drawer, 7–14 days, 3-cat rated
Ease Of Maintenance
Drawer empties easily; accessible design
Pull & Wrap system, accessible design
Noise
Moderate rake cycle noise
Not widely documented; assume moderate
Value
$299.99 (23% off list); premium mid-range
$379.99 mid-range, solid for multi-cat
Verdict
Best app-enabled automatic litter box for multi-cat homes
Best open-top self-cleaning box for multi-cat homes
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