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The main difference is between QV35S's spinning mops with structured-light obstacle detection and S1 Pro's roller system with RGB and infrared sensing. Water-care convenience needs to be balanced against consumable and privacy preferences.
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 | Eufy S1 Pro |
|---|---|---|
| Mop system | Dual spinning mops with 10 mm lift | HydroJet self-washing roller mop |
| Included dock | Dust emptying, mop washing, drying and water refill | Automatic dust emptying, water handling, mop care and detergent dispensing |
| Navigation description | LiDAR plus structured-light obstacle detection | 3D MatrixEye with infrared and RGB camera sensing |
| Advertised suction | 10,000 Pa | Not used for comparison here |
How your home changes the choice
A mostly hard-floor home gives roller mopping a clear role to evaluate. A mixed layout requires extra attention to rug protection and the robot's route back to its dock.
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 Eufy S1 Pro when…
Consider it for a hard-floor-led home where roller mopping and obstacle sensing justify the station space. A roller-mopping system with extensive dock automation and camera-based obstacle sensing.
Automatic detergent handling only helps if the correct compatible consumable is available and affordable.
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 substantial dock still needs cleaning and replenishing. The listing warns against using it on large liquid spills.
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
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.