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iRobot Roomba Combo j9+ vs Roborock Saros Z70
The Roborock Saros Z70 wins with a score of 8.5/10. Best for: Tech enthusiasts who want the latest.
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 Saros Z70
8.5/10$2600
Futuristic flagship with robotic arm — impressive tech but very expensive
Read full reviewScore Comparison
iRobot Roomba Combo j9+Roborock Saros Z70
Overall
7.68.5
Hard Floor
8.29.0
Carpet
7.89.5
Mopping
6.08.0
Navigation
8.09.5
Noise
7.06.5
Smart Features
7.59.5
Maintenance
8.07.5
Specifications
| iRobot Roomba Combo j9+ | Spec | Roborock Saros Z70 |
|---|---|---|
| $899 | Price | $2600 |
| 5500 | Suction (Pa) | 22000 |
| 4460 | Battery (mAh) | 5200 |
| 67.0 | Noise (dB) | 70.0 |
| — | Dustbin (ml) | 350 |
| — | Water Tank (ml) | 200 |
| — | Mop Lift (mm) | 22.0 |
| — | Height (mm) | 103.0 |
| — | Weight (kg) | 4.2 |
| vSLAM Camera | Navigation | LiDAR + 3D ToF |
| ✅ | Self-Empty | ✅ |
| ❌ | Self-Wash Mop | ✅ |
| ❌ | Self-Dry Mop | ✅ |
| ✅ | AI Obstacle | ✅ |
Pros & Cons
iRobot Roomba Combo j9+
Roborock Saros Z70
Pros
- + 22,000Pa — highest suction available
- + Robotic arm picks up objects
- + Best obstacle avoidance
- + Premium build quality
Cons
- − Very expensive at $2,299
- − Arm feature still maturing
- − Louder than competitors
- − Smaller water tank
The Verdict
The Roborock Saros Z70 is the better choice with an overall score of 8.5/10 — best for tech enthusiasts who want the latest. The iRobot Roomba Combo j9+ is more affordable at $899 vs $2600.