Between the L40 Ultra and Qrevo Master, the L40 Ultra comes out ahead in battery life and suction, while the Qrevo Master wins on noise. Overall, the L40 Ultra scores 68.2 and the Qrevo Master scores 64.9 on our Mars Score.
Which should you buy?
The L40 Ultra edges ahead on the Mars Score (68.2 vs 64.9), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the L40 Ultra if you care most about battery life and suction. The biggest gaps in its favor are battery life, suction, 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: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Dreame - L40 Ultra wins
- ▲Battery life — 11.11% more. 200 min vs 180 min.
- ▲Suction — 10.00% more. 11000 Pa vs 10000 Pa.
- ▲Water tank — 4.00% more. 260 ml vs 250 ml.
Why Roborock - Qrevo Master wins
- ▲Noise — 1.00 dB less. 64 vs 65.
Spec comparison
Cleaning
| Spec | Dreame - L40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Suction | 11000 Palead | 10000 Pa |
| Mopping | true | true |
| Water tank | 260 mllead | 250 ml |
| Dustbin | 320 mllead | 300 ml |
| Carpet detection | true | true |
Navigation
| Spec | Dreame - L40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Lidar | true | true |
| Camera navigation | true | true |
| AI obstacle avoidance | true | true |
| Max climb | 40 mmlead | 25 mm |
Autonomy
| Spec | Dreame - L40 Ultra | Roborock - Qrevo Master |
|---|---|---|
| Battery life | 200 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, L40 Ultra or Qrevo Master?+
L40 Ultra delivers 11000 Pa vs 10000 Pa.
Do L40 Ultra or Qrevo Master mop?+
Both can mop.
Which has a self-emptying base, L40 Ultra or Qrevo Master?+
Both ship with a self-emptying base.
Spec-level deep dives
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