Our Verdict
Cumrige Self Cleaning Litter Box Wins

It has a larger 15L waste bin and supports cats up to 33 lbs. Choose PETKIT PuraMax 2 for its lower 7.87-inch entry, suitable for older or mobility-limited cats.
Bottom Line: Cumrige Self Cleaning Litter Box is the better choice. It has a larger 15L waste bin and supports cats up to 33 lbs.
Key Differences
The most significant spec differences at a glance
Max Pet Weight Lbs
50% moreWaste Drawer
114% moreWeight
38% moreAdvantages
Where each product wins
Cumrige
- Max Pet Weight Lbs: 50% higher (33 vs 22.0)
- Waste Drawer: 114% higher (15 vs 7.0)
PETKIT
- Weight: 38% lower (30.4 vs 22.0)
Who Should Buy Which?
Find the right product for your needs
Buy Cumrige if...
Cumrige Self Cleaning Litter
If you own larger cats, multiple cats, or prioritize less frequent waste disposal, the Cumrige Self Cleaning Litter Box is your ideal choice. With a 33 lbs max pet weight and a generous 15-liter waste bin, it minimizes daily maintenance. This product is also perfect for budget-conscious buyers looking for robust app control, safety features, and quiet operation without an ongoing subscription cost, all at a competitive $199.98 price point. Its deodorizing design also helps maintain a fresh home.
Buy PETKIT if...
PETKIT PuraMax 2 Automatic
The PETKIT PuraMax 2 is best suited for owners of older cats, kittens over 3.3 lbs, or felines with mobility issues, thanks to its low 7.87-inch entrance. If you value detailed health tracking, including individual cat weight and usage data via an app, and specific infrared/weight sensors for enhanced safety, this product is for you. While more expensive at $299.99, its sealed base and pad design provide superior urine leakage prevention, ensuring a cleaner environment for your pet and home.
Spec Comparison
7 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $200 | $282 |
| Rating | 4.3(2.5k) | 4.2(778) |
| Sensor Type | — | infrared, weight |
| Max Pet Weight | 33 lbs | 22 lbs |
| Waste Capacity | 15L | 7L |
| App Subscription | Free | — |
| Weight | 30.4 lbs | 22 lbs |
| WiFi | Yes | Yes |
| Dimensions | 21.6" × 26.2" × 21.5" | 21.18" × 21.73" × 24.4" |
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Pros & Cons
Quick overview of strengths and weaknesses
Cumrige Self Cleaning
- Cat safety sensors pause cleaning cycles.
- 15-liter waste bin lasts up to 15 days.
- Remote control and health tracking via app.
- Deodorizing design controls odor and prevents leakage.
- Requires 2.4G WiFi for app functionality.
- Unit is heavy at 30.4 pounds.
- Large footprint: 21.6"W x 21.5"D.
PETKIT PuraMax 2
- Prevents urine leakage with sealed base and pad design.
- Tracks individual cat health data, weight, and usage via app
- 7L waste bin provides up to 15 days of hands-free use.
- Multiple sensors ensure cat safety during cleaning cycles.
- Requires placement on flat, hard floor to ensure sensor func
- Not suitable for young pets under 6 months or 3.3 lbs.
- Only compatible with 2.4GHz WiFi networks for app control.
- Not compatible with K3 Smart Spray odor remover.
Frequently Asked Questions
Common questions about this comparison
Which litter box is better for large or heavier cats?
The Cumrige supports cats up to 33 lbs and features a larger 15-liter waste bin. The PETKIT PuraMax 2 is suitable for cats up to 22 lbs and has a 7-liter waste capacity. Cumrige is generally better for larger pets.
What is the difference in waste drawer capacity?
The Cumrige boasts a 15-liter waste drawer, offering up to 15 days of use. The PETKIT PuraMax 2 has a 7-liter waste bin, also claiming up to 15 days, though it's half the physical capacity.
Is one better for cats with mobility issues?
Yes, the PETKIT PuraMax 2 features a low 7.87-inch entry, making it more accessible for older cats, kittens (over 6 months/3.3lbs), or those with limited mobility. Cumrige does not specify a low entry.
Do both units offer app control and health monitoring?
Yes, both the Cumrige and PETKIT PuraMax 2 offer app control for remote management and tracking of cat health data, including usage and weight. Both require a 2.4GHz WiFi connection.
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