Narwal Flow 2 review
Narwal's flagship: 31,000 Pa, a track mop rinsed with fresh water as it works and washed at 100 °C in the dock, a carpet pressure plate, two 1080p cameras and no LiDAR turret.
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Review method: Specification analysis
Our verdict
The Flow 2 is Narwal's turret-free flagship, and its case rests on the mop. The FlowWash track mop rolls under a stream of fresh water while it works, so it is not spreading yesterday's dirt, and the dock finishes the job with a 100 °C wash, warm-air drying at 40 °C and automatic detergent. Suction is 31,000 Pa, and a pressure plate seals the deck to carpet for what Narwal calls 4.2 times the pull. Positioning and obstacle avoidance come from two 1080p cameras and a 10 TOPS chip, which keeps the body at 95 mm and spots objects down to 5 mm; it crosses 40 mm thresholds. Narwal publishes no bin or tank capacity, no runtime, no weight and no map count, and says nothing about how camera-only positioning copes in a dark room. The mop lifts only 10 mm over carpet, and the price is flagship money.
Pros
- Track mop rinsed with fresh water while it cleans, washed at 100 °C and dried in the dock
- 31,000 Pa with a pressure plate that seals to carpet
- 95 mm tall with no turret; crosses 40 mm thresholds
- Two 1080p cameras and a 10 TOPS chip see obstacles down to 5 mm
- 7,000 mAh battery, 120 days of dust storage, under 56.5 dB
Cons
- Positioning by cameras alone, with no low-light claim from Narwal
- Mop lifts only 10 mm over carpet
- No bin, tank, runtime, weight or map count published
- Flagship money without a LiDAR fallback
Best for
- Hard floors with sticky spills, where a roller beats pads
- Low furniture that a turret would not clear
- Owners who want the dock to wash, dry and dose detergent itself
Not recommended for
- Dimly lit flats, until Narwal says how the cameras cope
- Deep carpet, where a 10 mm lift is marginal
- Buyers who need a published runtime or bin size
Score breakdown
- Cleaning
- 93 /100
- Navigation
- 64 /100
- Mopping
- 87 /100
- Obstacle Avoidance
- 85 /100
- Automation
- 90 /100
- Ease of Use
- 95 /100
- Reliability
- 66 /100
- Value
- 25 /100
In detail
Suction and brushes
The manufacturer rates the suction at 31,000 Pa. That is more than 77% of the 114 robot vacuums we list. The main brush is the tangle-resistant type, with one side brush. On carpet the suction rises automatically.
Mopping
Mop system: washed roller. It lifts the mop 10 mm over carpet. The mop swings out to reach along walls.
Navigation and obstacles
It navigates by camera SLAM and avoids obstacles with twin-camera AI. It climbs thresholds up to 40 mm. That is more than 66% of the 71 robot vacuums with a published figure. No-go zones can be drawn in the app.
The dock
The dock empties the bin, washes and dries the mop and refills the water tank. The dust bag lasts about 120 days.
Battery, charging and noise
The manufacturer states 57 dB. That is the lowest of the 9 robot vacuums with a published figure. The manufacturer publishes no runtime figure.
Video reviews
Public YouTube reviews by other authors, picked automatically by title and views and refreshed every few days. They do not feed the Verdict Score.
Specifications
Cleaning
- Suction
- 31,000 Pa
- Brush system
- Tangle-resistant
- Side brushes
- 1
- Carpet boost
- Yes
- Dustbin
- Not published
- Carpet pressure plate
- Sealed to the carpet, 4.2× suction by Narwal's measure
- Edge distance
- 5 mm
Navigation
- Mapping
- Camera SLAM
- Obstacle avoidance
- Twin-camera AI
- Saved floor plans
- Not published
- Threshold climb
- 40 mm
Mopping
- Mop type
- Washed roller
- Mop lift
- 10 mm
- Extending mop
- Yes
- Water tank
- Not published
- Mop rinsing
- Fresh water flows over the track mop while it cleans
Dock
- Self-emptying
- Yes
- Mop washing
- Yes
- Mop wash temperature
- 100 °C
- Mop drying
- Yes
- Water refill
- Yes
- Plumbed drain
- No
- Dust bag interval
- 120 days
- Warm-air drying
- 40 °C
- Detergent dispensing
- Automatic
- Dock size
- 450 × 360 × 530 mm
Software
- No-go zones
- Yes
- Pet waste recognition
- No
Power
- Battery
- 7,000 mAh
- Runtime
- Not published
- Charging time
- Not published
Connectivity
- Wi-Fi
- Yes
- Bluetooth
- No
- 4G / LTE
- No
- Voice control
- Yes
Physical
- Weight
- Not published
- L × W × H
- 351 × 364 × 95 mm
- Noise
- 57 dB
Support
- Warranty
- Not published
- Released
- Not published
Obstacles
- Cameras
- 2 × 1080p, 10 TOPS chip
- Smallest detected obstacle
- 5 mm
Data source: Narwal EU product page and its dimensions block, retrieved September 10, 2026
Where to buy
Prices are read every night from the manufacturers' shops that list the machine, and shown as read. A price no read has confirmed for several days is marked with the day it was last seen. Where a week or more of readings exists, the lowest we recorded in the last 30 days is stated as well. RoboVerdict may earn a commission when you buy through links on our site. This does not affect our rankings. As an Amazon Associate I earn from qualifying purchases.
Read next
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Guides that mention it
- Robot vacuums that mop, and your rugs: lift the mop, leave it at the dock, or steer round the carpet
- Robot vacuums without a camera: what the cameras see, where the pictures go, and how to buy without one
- Black Friday 2026 robot vacuums: how to tell a real discount from a permanent one
- Robot vacuums and pet hair: suction is the wrong number to shop by
- How a robot vacuum sees: LiDAR, cameras, structured light and which models dodge cables
- Robot vacuums and door thresholds: which models climb 2, 3, 4 or 5 cm
- Roller mop or spinning pads: which robot vacuum mop is better?
Top picks
- Dreame87
Dreame X50 Master
The X50 Ultra robot on a plumbed 249 mm dock: 20,000 Pa, legs for a 4.2 cm sill, a LiDAR that retracts to 89 mm, an 80 °C wash, 220 minutes a charge and a 3-year warranty.
- Dreame78
Dreame Matrix10 Pro
The pad-swapping dock on a conventional 104 mm robot: 30,000 Pa, a fixed LiDAR, pads that lift, swing and detach, a 100 °C wash with 45 °C drying, three detergents and a 6,400 mAh battery.
- Narwal78
Narwal Flow
Narwal's roller-mop robot below the Flow 2: 22,000 Pa, a track mop scraped and rinsed 110 times a minute, 45 °C water at 1.22 kg of pressure, 120 days of dust storage, two cameras and no turret.