Eufy Omni S2
For buyers who want a low-slung flagship that mops with a hot-washed roller and handles tall thresholds. Cheaper robots match its carpet cleaning and run longer per charge.
Amazon $1,299.99$1,299.99
The Eufy Omni S2 and the Narwal Flow are evenly matched, rated 3.9 and 3.9. The Eufy Omni S2 leads on cleaning. The Narwal Flow wins on navigation. The Narwal Flow costs $50 less ($1,249.99 vs $1,299.99).
Narwal Flow
The first Narwal track-mop robot, still a good hard-floor mopper. The Flow 2 does more for similar money.
Amazon $1,249.99$1,249.99
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Eufy Omni S2 for cleaning (measured 87% of sand from carpet, 88.5% of pet hair, no hair tangled vs measured 83% of sand from carpet, 88.5% of pet hair, no hair tangled).
- Choose the Narwal Flow for navigation (LiDAR + camera vs Camera + 3D light).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Eufy Omni S2 | Narwal Flow |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Cleaning 30% | 75 measured 87% of sand from carpet, 88.5% of pet hair, no hair tangled | 65 measured 83% of sand from carpet, 88.5% of pet hair, no hair tangled |
| Value 25% | 20 $1,300 | 22 $1,250 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup | 95 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, optional water hookup |
| Navigation 15% | 80 Camera + 3D light | 100 LiDAR + camera |
| Mopping 10% | 90 Roller, lifts 10.5 mm, extends to edges | 92 Roller, lifts 12 mm, extends to edges |
Independent tests
Eufy Omni S2
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 87% | 88.5% | 0 | 1,088 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Narwal Flow
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 83% | 88.5% | 0 | 1,399 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Eufy Omni S2 | Narwal Flow | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 30,000 Pa | 22,000 Pa |
| Main brush | DuoSpiral anti-tangle brushes | Single-side roller brush (DualFlow tangle-free system) |
| Dustbin | 300 mL | - |
| Extending side brush | Yes | No |
| Mopping | ||
| Mop | Roller, lifts 10.5 mm, extends to edges | Roller, lifts 12 mm, extends to edges |
| Mop lift | 10.5 mm | 12 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Water tank | 120 mL | 130 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 2.5 L | 2.5 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | No |
| Water hookup option | Yes | Yes |
| Clean water tank | 3 L | - |
| Navigation & app | ||
| Navigation | Camera + 3D light | LiDAR + camera |
| Obstacle avoidance | RGB camera + LED + 3D TOF, recognises 200+ obstacle types and objects over 1 cm | Dual RGB cameras with AI, recognises 200+ object types; laser edge sensors |
| Climbs thresholds | 42 mm | 30 mm |
| Matter | Yes | Yes |
| Voice assistants | Alexa, Google Assistant, Siri | Alexa, Google Assistant, Siri, Hey Nawa (built in) |
| Build | ||
| Height | 3.9 in (98 mm) | 3.7 in (95 mm) |
| Retracting LiDAR | No | No |
| Battery | 4,600 mAh | 5,900 mAh |
| Run time | Up to 4 h 20 min | - |
| Weight | 11.5 lb (5.2 kg) | 11 lb (5 kg) |
| Warranty | 1 year | 1 year |
| Released | 2026-01 | 2025-08 |