iRobot Roomba j9+ vs Roborock S8 MaxV Ultra
Premium robot vacuums with auto-empty and mopping: iRobot's Roomba j9+ faces Roborock's feature-loaded S8 MaxV Ultra.
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July 13, 2026
📊Scores
⚔Detailed comparison
| Criterion | iRobot Roomba j9+ | Roborock S8 MaxV Ultra |
|---|---|---|
| Suction Power | 5x Roomba suction (est. ~5,000 Pa) | 🏆 10,000 Pa |
| Navigation | PrecisionVision + vSLAM | 🏆 LiDAR + Reactive AI 2.0 |
| Obstacle Avoidance | Camera-based object avoidance | 🏆 Dual camera + 3D structured light |
| Mopping | Vacuum only (no mopping) | 🏆 VibraRise 3.0 sonic mop + auto self-clean |
| Auto-Empty | Yes (Clean Base, ~60 days) | Yes (All-in-One dock, ~7 weeks) |
| Self-Cleaning | Clean Base empties dust | 🏆 Auto washes mop, refills water, empties dust |
| App Features | iRobot Home, smart mapping | 🏆 Roborock app, 3D mapping, no-go zones |
| Pet Hair | 🏆 Excellent (dual rubber extractors) | Very good (rubber + bristle combo) |
| Carpet Detection | Auto-boost on carpet | 🏆 Auto-boost + lifts mop on carpet |
| Noise Level | 🏆 ~65 dB | ~67 dB (but quieter mop mode) |
| Price | 🏆 $799 | $1,399 |
Suction Power
iRobot Roomba j9+
5x Roomba suction (est. ~5,000 Pa)
Roborock S8 MaxV Ultra
🏆 10,000 Pa
Navigation
iRobot Roomba j9+
PrecisionVision + vSLAM
Roborock S8 MaxV Ultra
🏆 LiDAR + Reactive AI 2.0
Obstacle Avoidance
iRobot Roomba j9+
Camera-based object avoidance
Roborock S8 MaxV Ultra
🏆 Dual camera + 3D structured light
Mopping
iRobot Roomba j9+
Vacuum only (no mopping)
Roborock S8 MaxV Ultra
🏆 VibraRise 3.0 sonic mop + auto self-clean
Auto-Empty
iRobot Roomba j9+
Yes (Clean Base, ~60 days)
Roborock S8 MaxV Ultra
Yes (All-in-One dock, ~7 weeks)
Self-Cleaning
iRobot Roomba j9+
Clean Base empties dust
Roborock S8 MaxV Ultra
🏆 Auto washes mop, refills water, empties dust
App Features
iRobot Roomba j9+
iRobot Home, smart mapping
Roborock S8 MaxV Ultra
🏆 Roborock app, 3D mapping, no-go zones
Pet Hair
iRobot Roomba j9+
🏆 Excellent (dual rubber extractors)
Roborock S8 MaxV Ultra
Very good (rubber + bristle combo)
Carpet Detection
iRobot Roomba j9+
Auto-boost on carpet
Roborock S8 MaxV Ultra
🏆 Auto-boost + lifts mop on carpet
Noise Level
iRobot Roomba j9+
🏆 ~65 dB
Roborock S8 MaxV Ultra
~67 dB (but quieter mop mode)
Price
iRobot Roomba j9+
🏆 $799
Roborock S8 MaxV Ultra
$1,399
✓Final verdict
The Roborock S8 MaxV Ultra is the most complete robot vacuum-mop combo with 10,000 Pa suction, self-cleaning mop, and LiDAR navigation — it does everything. The Roomba j9+ is a strong vacuum-only choice at $600 less with excellent pet hair pickup and the trusted iRobot brand, but lacks mopping entirely.
⚖Pros and cons
iRobot Roomba j9+
Pros
- +Excellent pet hair pickup
- +$600 cheaper
- +Trusted iRobot brand and support
- +Dual rubber extractors (anti-tangle)
Cons
- -No mopping capability
- -Weaker suction than Roborock
- -Less advanced navigation
- -Basic app compared to Roborock
Roborock S8 MaxV Ultra
Pros
- +10,000 Pa suction power
- +Self-cleaning mop system
- +LiDAR + dual camera navigation
- +Mop auto-lifts on carpet
- +Most feature-complete dock
Cons
- -$1,399 is very expensive
- -Larger dock footprint
- -Slightly louder
🛒Where to buy?
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