Your robot vacuums the lounge carpet. Then you walk in and find a damp patch where it dragged the wet mop over the rug. The dustbin filled up after one room. The charging cable is still on the floor because the robot circled it twice and gave up.
That is not bad luck. That is what happens when a robot vacuum is not built for the specific demands of a UK home: carpet in multiple rooms, hard floors that need real mopping, thresholds between rooms, pets, kids, and a daily mess that compounds quickly.
The eufy Robot Vacuum Omni S2 was designed around those demands. It runs on three systems: AeroTurbo 2.0 for sustained carpet suction, HydroJet 2.0 for mopping that actually disinfects, and CleanMind AI for navigation that reads your home rather than just mapping it.
And eufy is the UK and Ireland No.1 robot vacuum brand in retail value sales, and the Omni S2 is built to show why (Euromonitor International, 2023-2024).
AeroTurbo 2.0 — Suction That Does Not Drop Off After Week One
Start with carpet, because in most UK homes, that is where cleaning either works or does not.
Most robot vacuums quote a Pa figure. That number measures suction pressure when the fan is completely sealed, and nothing is flowing: peak pressure, no actual cleaning happening. The number that matters during a real cleaning run is air watts (AW): pressure multiplied by airflow, measured while the robot moves across your floor.
The Omni S2 key figures:
- 30,000 Pa suction pressure
- 100AW sustained suction power
- 97% of that power retained after 90 days of use
At 100AW, the Omni S2 delivers the kind of output usually only found in handheld stick vacuums, from a fully autonomous robot.
How suction stays constant — the cyclone system:
- Air enters through multiple cones and spins into a centrifugal cyclone
- Dust and debris are thrown outward to the dustbin wall
- Only clean air ever reaches the filter, so the filter does not clog under normal use
The fan is made from aluminium-magnesium alloy, the same material used in aerospace engineering, for rapid heat dissipation and consistent motor performance.
After 90 days: 97% suction power retained. After a full year, 92% carpet cleaning power remains. Filter maintenance frequency drops by 6x.
Further Reading: What Is Good Suction Power for Vacuum Cleaner?
Carpet performance
The Omni S2 is the only robot vacuum that can climb onto and clean carpets up to 5cm thick. It applies different strategies to different carpet types:
- Tassled rug: Detects fringe, approaches from the opposite side
- Thin rug under 0.5cm: Routes around it unless it is directly in the path
- Long pile carpet: Avoids long fibres to prevent the brush getting caught
- Any carpet edge: AI identifies the boundary and cleans right to it
Between rooms, the S2 crosses raised thresholds up to 35mm (single step) and 42mm (double step) automatically. Front wheels lift on detection. No manual help needed.
Carpet is covered. But half of most UK homes have hard floors, and strong suction alone will not clean kitchen tiles or hardwood. That is where the second system comes in.
HydroJet Mop 2.0 — Clean Water on the Floor, Every Single Pass
Most robot mops have the same problem. They pick up dirt from the floor, then carry it to the next room. The mop gets dirtier with each pass, and by the third room, it is redistributing what it collected rather than removing it.
HydroJet works differently. Dirty water moves into a separate tank as the mop rolls. Fresh water feeds the mop surface continuously from a clean reservoir. The part touching your floor is always working from a clean surface — not just at the start of the run, but throughout.
Three upgrades in HydroJet 2.0:
Upgrade 1: Closer to the Edge
The mop extends 15mm beyond the robot body during wall runs. The strip most mops leave dirty is covered.
Upgrade 2: Cleaner to the Floor
The Omni S2 generates electrolysed water on board, producing hypochlorous acid and ozone — both natural disinfectants used in food-safe cleaning environments. The results are independently TUV certified:
- 99.99% water sterilisation rate, sustained for 5 days
- 99.99% floor sterilisation rate
- 15N downward pressure, up from 10N in the previous generation
- Eliminates bacteria as small as 3 microns
Upgrade 3: Stronger Self-Cleaning
Upgraded dual squeegee strips scrape the mop twice per rotation. The second pass diverts dirty water away before it can drip back onto the floor. The mop is 29cm long with 32 water injection holes. Water distributes evenly across the full width on every pass.
Back at the station after each run: the UniClean 12-in-1 Omni Station 2.0 washes the mop at 60℃, hot enough to dissolve grease. A turbidity sensor checks whether the mop is still dirty after washing. If it is, the station runs a second wash without being asked. Then 55℃ hot air dries the mop fully before the next run. The station also empties the dustbin automatically for up to 68 days.
Suction handles the carpet. HydroJet handles the hard floors. But both only work as well as the robot's ability to read what is in front of it: a cable on the floor, a spill in the kitchen, a rug edge in the dining room. That is the job of the third system.
CleanMind AI System — Your Home Has Four Layers. The Omni S2 Reads All of Them.
Most robot vacuums map your home. The CleanMind AI System does something different. It understands what it is looking at.
Powered by an 8-core, 8nm chip with 6 TOPS of computing power — three times higher than comparable systems — and using a sensor system called 3D Matrix Eye 2.0 (RGB + 3D ToF depth sensing), the Omni S2 builds a 1:1 model of your home. Not just where things are, but what they are.
This is the world first robot vacuum to use a vision large model for whole-home 3D mapping, producing the world first all-3D semantic map of a domestic space.
Layer 1: Above 50cm — furniture and room context
The S2 reads furniture types to identify room functions. It distinguishes Living Rooms, Kitchens, Bathrooms, Bedrooms, Dining Rooms and Garages automatically, then adjusts its cleaning approach for each space without manual configuration.
Layer 2: 2.5 to 50cm — obstacles on the floor
Two systems run simultaneously:
- AI recognition identifies 200+ object types and keeps extra distance from cables, pet waste and loose fabrics
- 3D stereo vision detects any object from 0.4 inches in size at up to 10 metres away, combined with RGB + 3D ToF depth sensing for autonomous-driving-level obstacle precision
Layer 3: Floor level — surfaces and structure
The S2 reads floor material: tiles, marble, and hardwood. It adjusts suction and water output to match. It also handles:
- Thresholds: front wheels lift 15mm, crossing up to 35mm single or 42mm double
- Corners: side brush extends 45mm outward for 100% corner coverage
All of that intelligence depends on one thing working reliably underneath it: brushes that do not jam, tangle, or lose pickup power mid-run.
Brushes That Handle Hair — Without You Having to Deal With It
Pet hair and long hair jam most robot brushes. Suction drops. Someone has to clear the roller by hand.
The Omni S2 dual spiral rotating brushes work differently:
- During cleaning: brushes stay closed tight. No missed spots, full-width pickup across the entire brush
- Back at the station: brushes open automatically to release tangled hair before the empty cycle starts
0% tangling rate on hairs up to 50cm long. No manual clearing between runs.
The side brushes use a two-claw design. Long outer bristles sweep debris inward. Short inner bristles direct it toward the suction path. Hair does not wrap around the brush arm between cleaning cycles.
Three systems, one robot. Here is who it actually suits.
Is the eufy Omni S2 Right for Your Home?
It works best where cleaning involves more than one floor type and more than one room.
Strong fit if you have:
- Carpet in two or more rooms
- Pets or long hair in the household
- Hard floors that need actual mopping, not just a damp pass
- Raised thresholds between rooms
- A schedule that does not have time for babysitting a robot
Set a schedule. The S2 vacuums, mops, navigates around what is on the floor, crosses thresholds between rooms and returns to the station, which empties, washes, refills and dries everything ready for next time.
Frequently Asked Questions
Is eufy the No.1 robot vacuum brand in the UK?
Yes. eufy is the UK and Ireland No.1 robot vacuum brand by retail value sales, according to Euromonitor International (UK: 2023, Ireland: 2024).
Can the eufy Robot Vacuum Omni S2 clean thick carpets?
Yes, up to 5cm thick. It also applies different strategies for tassled rugs, thin rugs and long-pile carpet rather than treating all carpet the same.
Does the eufy Omni S2 mop and vacuum at the same time?
Yes. On hard floors, both happen in the same pass. When it detects carpet, the mop lifts 28mm automatically to keep the carpet dry.
What happens when it detects a liquid spill?
The AI camera identifies the spill. Both brushes lift 8mm automatically. The robot switches to a targeted mopping pass, removing the liquid rather than vacuuming through it.
How long before any maintenance is needed?
The dustbin empties automatically for up to 68 days. The suction system maintains 97% power for 90 days without filter cleaning, with 6x fewer filter changes than standard robot vacuums.
