Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Ecovacs - Deebot X8 Pro Omni | Dreame - X40 Ultra |
|---|---|---|
| Suction | 18000 Pa | 12000 Pa |
| Battery life | 230 min | 210 min |
| Water tank | 260 ml | 270 ml |
| Noise | 62 dB | 65 dB |
Between the Deebot X8 Pro Omni and X40 Ultra, the Deebot X8 Pro Omni comes out ahead in suction / battery life, while the X40 Ultra wins on water tank. Overall, the Deebot X8 Pro Omni scores 88.4 and the X40 Ultra scores 83.9 on our Mars Score.
Which should you buy?
The Deebot X8 Pro Omni edges ahead on the Mars Score (88.4 vs 83.9), but the 4.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Deebot X8 Pro Omni if you care most about suction / battery life. The biggest gaps in its favor are suction, battery life, noise. The single most decisive one: Suction — 50.00% more. 18000 Pa vs 12000 Pa.
Pick the X40 Ultra if you care most about water tank. Its strongest claims are water tank. The single most decisive one: Water tank — 3.85% more. 270 ml vs 260 ml.
Both ship with comparable mopping, lidar, self-empty base, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Ecovacs - Deebot X8 Pro Omni or Dreame - X40 Ultra?
Ecovacs - Deebot X8 Pro Omni leads the current Mars Score by 4.5 points.The more useful decision is the trade-off behind that result: compare suction, battery life against the way you will actually use the product.
Choose Ecovacs - Deebot X8 Pro Omni if…
Ecovacs - Deebot X8 Pro Omni has the measurable edge on suction pa, battery life min, noise db.
Choose Dreame - X40 Ultra if…
Dreame - X40 Ultra has the measurable edge on water tank capacity ml.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Ecovacs - Deebot X8 Pro Omni wins
- ▲Suction — 50.00% more. 18000 Pa vs 12000 Pa.
- ▲Battery life — 9.52% more. 230 min vs 210 min.
- ▲Noise — 3.00 dB less. 62 vs 65.
Why Dreame - X40 Ultra wins
- ▲Water tank — 3.85% more. 270 ml vs 260 ml.
Spec comparison
Cleaning
| Spec | Ecovacs - Deebot X8 Pro Omni | Dreame - X40 Ultra |
|---|---|---|
| Suction | 18000 Palead | 12000 Pa |
| Mopping | true | true |
| Water tank | 260 ml | 270 mllead |
| Dustbin | 350 ml | 350 ml |
| Carpet detection | true | true |
Navigation
| Spec | Ecovacs - Deebot X8 Pro Omni | Dreame - X40 Ultra |
|---|---|---|
| Lidar | true | true |
| Camera navigation | true | true |
| AI obstacle avoidance | true | true |
| Max climb | 22 mm | 60 mmlead |
Autonomy
| Spec | Ecovacs - Deebot X8 Pro Omni | Dreame - X40 Ultra |
|---|---|---|
| Battery life | 230 minlead | 210 min |
| Self-empty base | true | true |
| Self-wash mop | true | true |
| Self-dry mop | true | true |
| Noise | 62 dBlead | 65 dB |
Frequently asked
Which has stronger suction, Deebot X8 Pro Omni or X40 Ultra?+
Deebot X8 Pro Omni delivers 18000 Pa vs 12000 Pa.
Do Deebot X8 Pro Omni or X40 Ultra mop?+
Both can mop.
Which has a self-emptying base, Deebot X8 Pro Omni or X40 Ultra?+
Both ship with a self-emptying base.