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iRobot Roomba Combo j9+ vs Roborock S8 MaxV Ultra
The Roborock S8 MaxV Ultra wins with a score of 9.0/10. Best for: Pet hair owners with large homes.
iRobot Roomba Combo j9+
7.6/10$899
The premium Roomba with the best pet-waste avoidance in the industry, but its basic wipe-only mopping falls short of Roborock and Dreame flagships.
Read full review Winner
Roborock S8 MaxV Ultra
9.0/10$1800
Premium robot vacuum with outstanding navigation and the best app experience
Read full reviewScore Comparison
iRobot Roomba Combo j9+Roborock S8 MaxV Ultra
Overall
7.69.0
Hard Floor
8.29.2
Carpet
7.88.8
Mopping
6.08.5
Navigation
8.09.3
Noise
7.07.5
Smart Features
7.59.0
Maintenance
8.08.0
Specifications
| iRobot Roomba Combo j9+ | Spec | Roborock S8 MaxV Ultra |
|---|---|---|
| $899 | Price | $1800 |
| 5500 | Suction (Pa) | 10000 |
| 4460 | Battery (mAh) | 5200 |
| 67.0 | Noise (dB) | 67.0 |
| — | Dustbin (ml) | 400 |
| — | Water Tank (ml) | 300 |
| — | Mop Lift (mm) | 5.0 |
| — | Height (mm) | 96.5 |
| — | Weight (kg) | 3.7 |
| vSLAM Camera | Navigation | LiDAR + 3D ToF |
| ✅ | Self-Empty | ✅ |
| ❌ | Self-Wash Mop | ✅ |
| ❌ | Self-Dry Mop | ✅ |
| ✅ | AI Obstacle | ✅ |
Pros & Cons
iRobot Roomba Combo j9+
Roborock S8 MaxV Ultra
Pros
- + Best-in-class navigation
- + Excellent app experience
- + Strong suction
- + ReactiveAI obstacle avoidance
Cons
- − Expensive
- − Low mop lift height
- − Large dock footprint
The Verdict
The Roborock S8 MaxV Ultra is the better choice with an overall score of 9.0/10 — best for pet hair owners with large homes. The iRobot Roomba Combo j9+ is more affordable at $899 vs $1800.