Between the L40 Ultra and Cube, the L40 Ultra comes out ahead in suction and water tank, while the Cube wins on several specs. Overall, the L40 Ultra scores 68.2 and the Cube scores 61.3 on our Mars Score.
Which should you buy?
The L40 Ultra edges ahead on the Mars Score (68.2 vs 61.3), but the 6.9-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 suction and water tank. The biggest gaps in its favor are suction, water tank, battery life, among others.
The Cube 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 L40 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dreame - L40 Ultra wins
- ▲Suction — 37.50% more. 11000 Pa vs 8000 Pa.
- ▲Water tank — 13.04% more. 260 ml vs 230 ml.
- ▲Battery life — 11.11% more. 200 min vs 180 min.
- ▲Has AI obstacle avoidance.
Why Yeedi - Cube wins
- No decisive advantages.
Spec comparison
Cleaning
| Spec | Dreame - L40 Ultra | Yeedi - Cube |
|---|---|---|
| Suction | 11000 Palead | 8000 Pa |
| Mopping | true | true |
| Water tank | 260 mllead | 230 ml |
| Dustbin | 320 mllead | 300 ml |
| Carpet detection | true | true |
Navigation
| Spec | Dreame - L40 Ultra | Yeedi - Cube |
|---|---|---|
| Lidar | true | true |
| Camera navigation | truelead | false |
| AI obstacle avoidance | truelead | false |
| Max climb | 40 mmlead | 20 mm |
Autonomy
| Spec | Dreame - L40 Ultra | Yeedi - Cube |
|---|---|---|
| Battery life | 200 minlead | 180 min |
| Self-empty base | true | true |
| Self-wash mop | true | true |
| Self-dry mop | true | true |
| Noise | 65 dB | 65 dB |
Frequently asked
Which has stronger suction, L40 Ultra or Cube?+
L40 Ultra delivers 11000 Pa vs 8000 Pa.
Do L40 Ultra or Cube mop?+
Both can mop.
Which has a self-emptying base, L40 Ultra or Cube?+
Both ship with a self-emptying base.
Spec-level deep dives
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