Affiliate disclosure: this article contains paid links. As an Amazon Associate I earn from qualifying purchases.
Both are aimed at automating wet and dry cleaning, but L40s Pro Ultra's detachable mops and threshold features are worth examining where the floor plan is difficult. QV35S offers a documented spinning-mop and structured-light arrangement.
This comparison is based on the UK listings and manufacturer information cited below. We have not tested these robots side by side, so the recommendation is about features and household fit rather than a measured cleaning winner.
Table of Contents
The differences that affect everyday use
| Feature | Roborock QV35S | Dreame L40s Pro Ultra |
|---|---|---|
| Mop system | Dual spinning mops with 10 mm lift | Rotating, liftable and detachable mops |
| Included dock | Dust emptying, mop washing, drying and water refill | Automatic dust emptying, hot mop washing and detergent handling |
| Navigation description | LiDAR plus structured-light obstacle detection | Obstacle avoidance and app control |
| Advertised suction | 10,000 Pa | 19,000 Pa |
How your home changes the choice
A difficult doorway can be more decisive than a feature table. Test the whole return route and compare exact model guidance before paying for automation that depends on crossing it.
Choose Roborock QV35S when…
Consider it for a mix of sealed hard flooring and manageable short-pile rugs. An automatic mop-care system with app-adjustable routines and structured-light obstacle detection.
Check the exact QV35S name and bundle: nearby Qrevo names refer to different robots and stations.
Choose Dreame L40s Pro Ultra when…
Consider it when detachable mops and reduced brush wrapping matter more than choosing the simplest dock. A mixed-floor system with detachable mops and dual-brush hair management.
EasyLeap threshold claims depend on obstacle shape and conditions; measure the actual doorway and inspect the manual before relying on them.
Limitations to check before ordering
- The 10 mm mop lift is a short-pile accommodation, not a guarantee for thick rugs. Tank and tray care continue despite the automatic dock.
- The L40s Pro Ultra is a different product from L40 Ultra, L40 Ultra AE and L40 Ultra A. Do not transfer prices or specifications between them.
Compare the complete UK purchase
Check the exact model, selected bundle and included station before comparing prices. Similar names can hide different mops, emptying systems or regional specifications. Include the parts you will regularly replace and the chores you will still do. Manufacturer and retailer descriptions establish advertised features; they do not provide an independent test of cleaning performance in your home.
| Check | What matters |
|---|---|
| Identity | Full model name, UK suitability and contents. |
| Ownership | Correct bags, filters, pads and solution availability. |
| Practical fit | Floor route, dock access and maintenance you can manage. |
Check the current UK offers
View Roborock QV35S on Amazon UK
View Dreame L40s Pro Ultra on Amazon UK
Compare the selected bundle, seller and included accessories. Prices and availability can change; no fixed deal price or claimed saving is assumed here.
Related guidance
- How to Choose a Robot Vacuum: Complete Buyer's Guide
- Robot Vacuum Maintenance Tips UK: Keep Your Cleaner Running Smoothly
Sources and scope
Checked on 9 September 2026. Manufacturer instructions apply to the models they name; use your own exact manual for button sequences, removable parts and cleaning permissions. Product specifications are advertised claims. Examples illustrate decisions and are not hands-on test results.