With the growing demand for smarter pet care solutions, PETKIT has developed a range of automatic litter boxes equipped with its innovative "Health Monitoring + Smart Cleaning" technology. These advanced products are designed to cater to a variety of pet care needs. In this article, we will explore the distinct features of four PETKIT models—the Purobot Crystal Duo, Purobot Ultra, Purobot Max Pro 2, and PuraMax 2—examining their technical specifications, features, and how they address common user challenges. We’ll also guide you on which model might be the best fit for your needs.
Core Product Parameter Comparison
| Model | Purobot Crystal Duo | Purobot Ultra | Purobot Max Pro 2 | PuraMax 2 |
| Max Cleaning Period (Per Cat) | 30 Days | 20 Days | 17 Days | 15 Days |
| Entrance Height | 7.08 in (180 mm) | 10.43 in (265 mm) | 9.84 in (250 mm) | 7.87 in (200 mm) |
| AI camera | ✓ | ✓ | ✓ | X |
| Camera Capturing Scope | Fixed Cylinder View | Cylinder View Home View |
Fixed Cylinder View | X |
| Multi-cat Recognition | X | AI Facial Recognition Weight Recognition |
AI Facial Recognition Weight Recognition |
X |
| Audio Mode | One-way Audio | Two-way Audio | One-way Audio | X |
| Multiple Odor Control | Double Odor Control | Quadruple Odor Control | Triple Odor Control | Triple Odor Control |
| Waste Packing Methods | Disposable Litter Tray | Auto Waste Packing | Drawstring Waste Packing | Manual Waste Packing |
| Cat Weight Limit | over 3.3 lbs (1.5 kg) | 3.3 lbs (1.5 kg) to 22 lbs (10 kg) | 3.3 lbs (1.5 kg) to 22 lbs (10 kg) | 3.3 lbs (1.5 kg) to 22 lbs (10 kg) |
| Wi-Fi Connection | 2.4 GHz / 5 GHz | 2.4 GHz / 5 GHz | 2.4 GHz / 5 GHz | 2.4 GHz |
In-Depth Analysis of Four Products
Purobot Crystal Duo Automatic Cat Litter Box with Camera
Pros：
- Open design accommodates cats of all sizes, even those over 16 lbs, allowing them to turn around comfortably.
- The 7.08-inch (180 mm) entrance height makes it easy for short-legged or senior cats to enter and exit.
- One-click cleaning with crystal cat litter and eco-friendly paper pulp trays—no sticky bottom issues.
- Specially designed for crystal cat litter, one pack can last up to 30 days in a single-cat household without requiring daily scooping.
- AI pet recognition tracks your cat’s bathroom habits in real time.
- Economically priced at $199.99 , making it ideal for budget-conscious pet owners.
Cons:
- Requires regular replacement of crystal litter, which adds to maintenance costs.
Purobot Ultra Automatic Cat Litter Box
Pros：
- A 180-degree rotating camera provides full visibility of your cat’s bathroom habits from different angles.
- AI-powered multi-cat recognition tracks each cat's data and habits.
- Fully automated cleaning system with self-scooping, sealing, and bagging functions.
- A 10L waste container that lasts for 20 days for a single cat.
- AI clumping recognition helps monitor your cat’s health by detecting urine and fecal clumping patterns in real time.
- Real-time dynamic recording allows you to keep an eye on your cat’s activities throughout the day.
Cons：
- Suitable for cats under 16 lbs, but not ideal for larger cats over 20 lbs.
Purobot Max Pro 2 Automatic Cat Litter Box
Pros：
- 210-degree real-time viewing lets you monitor your cat's bathroom habits from multiple angles.
- AI-powered multi-cat recognition tracks individual cats and their data.
- Remote monitoring via an app allows you to watch your cat's activities and capture cute moments.
- Easy waste disposal with convenient Drawstring Waste Packing system.
- The sealed structure prevents urine leakage, making it ideal for cats that tend to urinate along the edges.
- An 8L waste container lasts for 17 days for a single cat.
Cons：
- Requires manual bagging, unlike the Ultra model, which offers touch-free auto waste packing.
PuraMax 2 Automatic Cat Litter Box
Pros：
- Perfect for first-time automatic litter box users with a limited budget.
- Suitable for single-cat or small multi-cat households.
- Affordable entry price makes it the most cost-effective option in the PETKIT smart litter box series.
- Offers basic functions: self-cleaning, deodorizing, and safety features.
Cons：
- The 7L waste container is smaller than the Max Pro 2’s, better suited for smaller households.
- Lacks the advanced features of the Max Pro and Ultra models, but still offers reliable performance for a budget-friendly option.
