Between the S9 MaxV Ultra and Robot Vacuum Pro, the S9 MaxV Ultra comes out ahead in suction and water tank, while the Robot Vacuum Pro wins on several specs. Overall, the S9 MaxV Ultra scores 85.1 and the Robot Vacuum Pro scores 46.6 on our Mars Score.
Which should you buy?
The S9 MaxV Ultra is the clear pick on raw spec strength, leading by 38.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the S9 MaxV Ultra if you care most about suction and water tank. The biggest gaps in its favor are suction, water tank, battery life, among others.
The Robot Vacuum Pro similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable mopping, lidar, self-empty base, so those specs don't separate the two — focus on the differences below.
Bottom line: the S9 MaxV Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Roborock - S9 MaxV Ultra wins
- ▲Suction — 633.33% more. 22000 Pa vs 3000 Pa.
- ▲Water tank — 66.67% more. 300 ml vs 180 ml.
- ▲Battery life — 50.00% more. 180 min vs 120 min.
- ▲Has AI obstacle avoidance.
Why Wyze - Robot Vacuum Pro wins
- No decisive advantages.
Spec comparison
Cleaning
| Spec | Roborock - S9 MaxV Ultra | Wyze - Robot Vacuum Pro |
|---|---|---|
| Suction | 22000 Palead | 3000 Pa |
| Mopping | true | true |
| Water tank | 300 mllead | 180 ml |
| Dustbin | 350 ml | 350 ml |
| Carpet detection | true | true |
Navigation
| Spec | Roborock - S9 MaxV Ultra | Wyze - Robot Vacuum Pro |
|---|---|---|
| Lidar | true | true |
| Camera navigation | true | true |
| AI obstacle avoidance | truelead | false |
| Max climb | 40 mmlead | 18 mm |
Autonomy
| Spec | Roborock - S9 MaxV Ultra | Wyze - Robot Vacuum Pro |
|---|---|---|
| Battery life | 180 minlead | 120 min |
| Self-empty base | true | true |
| Self-wash mop | truelead | false |
| Self-dry mop | truelead | false |
| Noise | 65 dB | 65 dB |
Frequently asked
Which has stronger suction, S9 MaxV Ultra or Robot Vacuum Pro?+
S9 MaxV Ultra delivers 22000 Pa vs 3000 Pa.
Do S9 MaxV Ultra or Robot Vacuum Pro mop?+
Both can mop.
Which has a self-emptying base, S9 MaxV Ultra or Robot Vacuum Pro?+
Both ship with a self-emptying base.
Spec-level deep dives
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