HEAD-TO-HEAD COMPARISON
Roborock S8 Pro Ultra vs iRobot Roomba j9+
We compare the Roborock S8 Pro Ultra and iRobot Roomba j9+ head-to-head on performance, features, value, and more. Here's which one wins.
Our Pick
Check Price on AmazonRoborock S8 Pro Ultra
Scored 9.3/10 in our testing
Best Overall
Roborock S8 Pro Ultra
Anyone who wants a fully hands-off cleaning experience
Overall:9.3/10Winner
Check price on Amazon Best Self-Emptying
iRobot Roomba j9+
Pet owners and households with a lot of hair and debris
Overall:9/10
Check price on Amazon Score Breakdown
| Roborock S8 Pro Ultra | Category | iRobot Roomba j9+ |
|---|---|---|
| 9.5/10 ✓ | Performance | 9/10 |
| 9.8/10 ✓ | Features | 8.8/10 |
| 9.2/10 | Ease of Use | ✓ 9.5/10 |
| 8.5/10 | Value | 8.5/10 |
| 9.3/10 ✓ | Overall | 9/10 |
Specs Comparison
| Roborock S8 Pro Ultra | Spec | iRobot Roomba j9+ |
|---|---|---|
| 6000Pa | Suction | 100x base model suction |
| VibraRise sonic mopping | Mopping | Clean Base 60-day capacity |
| Empty + refill + self-clean | Auto Station | iRobot OS smart mapping |
| PreciSense LiDAR | Navigation | Tangle-free debris extractor |
Roborock S8 Pro Ultra
Pros
- + Fully automatic dock handles everything
- + 6000Pa suction is exceptional
- + Mop lifting avoids carpet soaking
- + Excellent LiDAR obstacle avoidance
Cons
- − Expensive
- − Large dock footprint
- − Mopping pad can smell if not maintained
iRobot Roomba j9+
Pros
- + Best pet hair removal
- + 60-day auto-empty base
- + Polished app and smart mapping
- + Excellent obstacle avoidance
Cons
- − No mopping capability
- − Subscription for some features
- − Slower than LiDAR robots
Our Verdict
Based on our scoring, the Roborock S8 Pro Ultra comes out on top with an overall score of 9.3/10. The S8 Pro Ultra is the closest thing to a fully autonomous cleaning robot. The dock empties the dustbin, refills the water tank, and washes the mop pads automatically. LiDAR navigation avoids obstacles reliably and the 6000Pa suction handles pet hair effortlessly.
Buy the Roborock S8 Pro Ultra on AmazonRead the full Best Robot Vacuums 2026 guide for complete reviews of all 5 products.