Between the X40 Ultra and Qrevo Master, the X40 Ultra comes out ahead in suction and battery life, while the Qrevo Master wins on noise. Overall, the X40 Ultra scores 70.7 and the Qrevo Master scores 64.9 on our Mars Score.
Which should you buy?
The X40 Ultra edges ahead on the Mars Score (70.7 vs 64.9), but the 5.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the X40 Ultra if you care most about suction and battery life. The biggest gaps in its favor are suction, battery life, water tank.
Pick the Qrevo Master if you care most about noise. Its strongest claims are noise.
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 X40 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dreame - X40 Ultra wins
- ▲Suction — 20.00% more. 12000 Pa vs 10000 Pa.
- ▲Battery life — 16.67% more. 210 min vs 180 min.
- ▲Water tank — 8.00% more. 270 ml vs 250 ml.
Why Roborock - Qrevo Master wins
- ▲Noise — 1.00 dB less. 64 vs 65.
Spec comparison
Cleaning
| Spec | Dreame - X40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Suction | 12000 Palead | 10000 Pa |
| Mopping | true | true |
| Water tank | 270 mllead | 250 ml |
| Dustbin | 350 mllead | 300 ml |
| Carpet detection | true | true |
Navigation
| Spec | Dreame - X40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Lidar | true | true |
| Camera navigation | true | true |
| AI obstacle avoidance | true | true |
| Max climb | 60 mmlead | 25 mm |
Autonomy
| Spec | Dreame - X40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Battery life | 210 minlead | 180 min |
| Self-empty base | true | true |
| Self-wash mop | true | true |
| Self-dry mop | true | true |
| Noise | 65 dB | 64 dBlead |
Frequently asked
Which has stronger suction, X40 Ultra or Qrevo Master?+
X40 Ultra delivers 12000 Pa vs 10000 Pa.
Do X40 Ultra or Qrevo Master mop?+
Both can mop.
Which has a self-emptying base, X40 Ultra or Qrevo Master?+
Both ship with a self-emptying base.
Spec-level deep dives
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