Side-by-side engineering specifications compiled from official manufacturer documentation. Compare entryway dimensions, waste drawer capacities, and safety sensor arrays across leading automatic cat litter boxes.
CORE MASTER PILLAR
The comprehensive pillar guide covering rotating globes, open-top basins, and mechanical rakes. Full 8-model specification matrix with sources linked.
MULTI-CAT BLUEPRINT
Why small waste drawers overflow in multi-cat homes — and how weight-tracking sensors distinguish between pets to monitor urinary patterns and prevent cycle ambushes.
LARGE BREEDS & OPEN-TOP
Compare entry openings and stated cat weight limits for larger cats across open-top and rotating designs.
| Specification | Litter-Robot 5 (Whisker) | Neakasa M1 (US listing: M1 Plus) | PETKIT Purobot Max Pro 2 (PETKIT) |
|---|---|---|---|
| Design Form Factor | Enclosed Rotating Globe | Open-Top Sifting Basin | Enclosed Rotating Cylinder |
| Entry Opening Dimensions | 15.75 x 15.75 in | Entry height: 13.86 in (width/depth not stated) | 10.51 x 10.74 in; entrance height 10.03 in |
| Stated Cat Weight Limits | 3–30 lbs, up to 5 cats | 2.2–33 lbs | 3.3–22 lbs |
| Waste Bin Capacity | Up to 10 days (one cat); volume not stated | 11.23L bin; about 14 days for one cat | 8L bin; up to 17 days (one cat) |
| Safety Sensor Architecture | Multiple lasers + weight sensor technology (Class 1 laser product) | Infrared + 4 weight sensors* | 12 integrated safety sensors |
| Stated Sound Level (dB) | Not stated by manufacturer* | 50 dB | 35 dB |
| Manufacturer Warranty | 1 year included; optional 3-year plan listed at $149 | US/Canada: 1-year limited; EU/UK: 2-year | 2 years (from image alt text; terms not on page) |
| Exterior Footprint / Dimensions | 22 x 27 in footprint, 29.9 in high; 28.7 lbs empty | Not stated by manufacturer (22.81 lbs empty) | 25.86 x 21.18 x 23.74 in |
| Starting Pricing | As low as $799 (Litter-Robot 5 Pro: as low as $899, adds dual camera) | $379.99 (M1 Plus)* | $499.99 sale (regular $599.99) |
| Specification Profile | View LR5 Specs → | View M1 Specs → | View Max Pro 2 → |
Primary Manufacturer Source Links:
Verification & Notes: Specs read from manufacturer pages on Oct 9, 2026.
• Neakasa M1 Price: CONFIRM: US listing read was M1 Plus at $379.99 (regular $549.99); standard M1 price not shown.
• Neakasa M1 Sensors: Infrared count inconsistent on manufacturer page (5 vs 6 sets).
• Litter-Robot 5 Sound: dB not stated by manufacturer; page notes QuietSift technology minimizes noise.
Affiliate Disclosure: Links to Neakasa and PETKIT are partner links that may earn an affiliate commission at no additional cost to you. Litter-Robot 5 is included strictly as an uncompensated reference standard.
Explore dedicated specification pages for individual self-cleaning cat litter box models with verified manufacturer engineering data, dimensions, and sensor architecture.
REFERENCE BENCHMARK
15.75" x 15.75" opening, multiple lasers + weight sensors, accommodating cats from 3 to 30 lbs.
View Litter-Robot 5 Specs →
OPEN-TOP BASIN
Open-top sifting basin, 13.86" entrance step height, 11.23L waste container, 2.2 to 33 lbs range.
View Neakasa M1 Specs →
AI CAMERA CYLINDER
10.51 x 10.74 in opening, 8L waste bin, 35 dB sound level, 180° AI camera recognition.
View Purobot Max Pro 2 Specs →
LOW STEP-IN
Low 8.03 in entrance height, 7L waste bin, 12 sensors with anti-pinch structure, 3.3 to 22 lbs.
View Purobot Max 3 Specs →
AUTO-SEAL CYLINDER
Automatic bag packing & sealing, 10L waste bin, 20-sensor xSecure system, 36 dB operating sound.
View Purobot Ultra Specs →