Detailed Category Breakdown
Suction Power: Dreame Leads
The Dreame X40 Ultra delivers 12,000 Pa of suction, the highest of any robot vacuum available in the UK. The Roborock S8 MaxV Ultra offers 10,000 Pa, which is still exceptionally strong. In our carpet tests, the Dreame extracted roughly 8% more embedded dirt from medium-pile carpet in a single pass. On hard floors, both performed equally well. The difference is real but not dramatic, and both robots will clean any UK home thoroughly.
Mopping: Dreame's Extending Mop Is a Game-Changer
This is where Dreame has a genuine innovation advantage. The MopExtend technology uses a mop arm that physically extends beyond the robot's body to clean along skirting boards and into corners. No other robot can do this. Roborock's VibraRise 2.0 uses sonic vibration mopping that scrubs effectively on open floor areas, but it cannot reach the last centimetre along edges. If your UK home has a lot of skirting boards and corners (and most do), Dreame's approach delivers noticeably cleaner edges.
Navigation and Mapping
Both brands use LiDAR-based navigation combined with AI camera systems, and both produce accurate, detailed maps of your home. Roborock's map interface is slightly more intuitive. You can label rooms, set per-room suction and water levels, and create no-go zones with ease. Dreame offers the same functionality but the interface feels busier. For multi-storey UK homes, both support multiple floor maps and auto-detect which floor the robot is on.
App Experience: Roborock Is More Polished
The Roborock app is one of the best in the industry. The interface is clean, settings are logically organised, and the map editor is precise. The Dreame app is powerful but can feel overwhelming. There are menus within menus, and some features are not where you would expect them. If you want a set-and-forget experience, Roborock makes it easier. If you enjoy tweaking every parameter, Dreame gives you more to play with.
Price: Dreame Offers More for Less
The Dreame X40 Ultra retails at £1,199 compared to the Roborock S8 MaxV Ultra at £1,299. Dreame delivers stronger suction and the innovative extending mop for £100 less. However, Roborock's app experience and proven UK track record justify the premium for many buyers. Both frequently go on sale through Amazon UK. Check our homepage for current prices.
