Roborock lists 10,000 Pa, a VibraRise 3.0 sonic mop, a dock that empties, refills and dries, and Reactive AI 2.0 obstacle recognition with PreciSense LiDAR. Dreame lists 12,000 Pa, a mop that can be removed or lifted 10.5mm, a 158°F mop-washing dock, a 6,400mAh battery and 3D structured light. Suction figures are not measured on a common standard.
Roborock S8 MaxV Ultra vs Dreame X40 Ultra: Flagship Robot Vacuum Showdown (2026)
Roborock S8 MaxV Ultra vs Dreame X40 Ultra: both rated 3.9 stars on Amazon, but the S8 is unavailable and the X40 only has used offers. Listed specs compared.
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Roborock S8 MaxV Ultra
$849.99 (unavailable)
VS
Dreame X40 Ultra
$524.62 (used only)
Quick Answer
Roborock S8 MaxV Ultra wins overall
On 5 October 2026 neither robot could be bought new on Amazon.com: the Roborock S8 MaxV Ultra listing said "Currently unavailable" and the Dreame X40 Ultra only had a used offer (Used: Like New, Amazon Resale, $524.62). Both are rated 3.9 stars, on 783 and 895 ratings. So this comparison is informational; neither carries a buy link. I have not tested either.
Specifications
| Feature | Roborock S8 MaxV Ultra | Dreame X40 Ultra |
|---|---|---|
| Price | $849.99 (unavailable) | $524.62 (used only) |
| Suction (maker) | 10,000 Pa (Roborock) | 12,000 Pa (Dreame) |
| Mop | VibraRise 3.0 sonic mopping | Removable, liftable to 10.5mm |
| Dock | All-in-one dock, hot-air drying, auto empty and refill | Auto empty and refill, 158°F mop and washboard washing |
| Owner Ratings | 783 at 3.9 | 895 at 3.9 |
| Availability on Amazon | Currently unavailable | Used offer only |
What the Makers List
Winner: What the Makers List
Tie
No call. Different feature sets.
Can You Buy Them?
The S8 MaxV Ultra page said "Currently unavailable" with no restock date. The X40 Ultra page offered only a used unit from Amazon Resale. Check other retailers and the makers' own stores.
Winner: Can You Buy Them?
Tie
Neither is purchasable new from Amazon right now.
Owner Ratings
Both are rated 3.9 stars: the S8 on 783 ratings and the X40 on 895.
Winner: Owner Ratings
Tie
A tie.
Final Verdict
Roborock S8 MaxV Ultra takes it
There is no winner I can name, and neither can be bought new on Amazon today. If you are choosing between them elsewhere, their ratings are identical and their listed features differ in the ways shown above. For robots you can buy now, see the mop combo guide.
Frequently Asked Questions
I cannot say: I have not tested either and their Amazon ratings are identical at 3.9.
I do not know. The listings said unavailable and used-only on 5 October 2026.