Head to head · Robot vacuums

Narwal Flow vs Narwal Flow 2

Same 95 mm body and roller: the Flow 2 adds 9,000 Pa, 60 °C mop water against 45 °C and a stated 100 °C mop wash; the Flow's standard dock is lower.

Manufacturers' published figures, scored by the same engine as the rankings. Nothing here is from a test we ran. · Published

Verdict

The Narwal Flow 2 has the higher Verdict Score, 79 to 78.

The Narwal Flow and the Narwal Flow 2 share the FlowWash track mop, rinsed with fresh water as it rolls, and Narwal sells one replacement mop for both. They also share the 95 mm body with no turret and two cameras with an AI chip for obstacles, and both docks empty the bin into a 120-day bag, wash the mop with hot water and refill the robot's tank.

The Flow 2 has 31,000 Pa against 22,000, and Narwal describes four carpet modes for it. It mops with 60 °C water against 45 °C, and its dock washes the mop at 100 °C, where Narwal gives the Flow's dock hot-water self-cleaning but no mop-wash temperature. Its dock also doses detergent; with the Flow's standard dock you add it to the clean-water tank by hand. Its battery holds 7,000 mAh against 6,400, with no runtime per charge published for either, and it is the only one of the two with a noise figure, under 56.5 dB.

The Flow has the lower standard dock, 461 mm tall against 530 mm, which can decide whether it fits under a shelf, and on hard floors with low rugs it mops with the same roller, but with cooler water. Both pages print a 40 mm threshold, but Narwal's FAQ for the Flow narrows it to a two-step sill, with 30 mm for a single one, the figure in the table, and advises carpets under 20 mm thick; the Flow 2's pages say neither, so its 40 mm stands as printed. With carpet, pet hair or greasy kitchen floors, the Flow 2's extra suction and hotter water are the changes that count.

The score card beside this verdict has both Verdict Scores, and the price row below has the current figures for your market. If neither suits, the roller-mop ranking lists the best of the machines that mop with a roller.

Edited by Maciej Ziółko, founder and editor. Method: specification analysis of the makers' published figures, explained on our scoring and editorial policy pages.

Narwal
Narwal Flow$1,500
Narwal
Narwal Flow 2$1,025

Where the Narwal Flow is ahead

  • Value38 · 31

Where the Narwal Flow 2 is ahead

  • Navigation64 · 59
  • Mopping92 · 91
  • Obstacle Avoidance90 · 85
  • Ease of Use95 · 94
  • Suction31,000 Pa · 22,000 Pa
  • Threshold climb40 mm · 30 mm

Subscores are from our engine; the specification rows are the manufacturers' published figures, listed only where the better direction is beyond argument.

Where to buy

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Full specification, side by side

Compare
Narwal Flow
Narwal press image
Narwal Flow 2
Narwal press image
$1,500Price in the manufacturer's shop
$1,025Price in the manufacturer's shop
Highest Verdict Score

Shop links are affiliate links: a purchase through them may earn RoboVerdict a commission, which never changes a ranking.

Check priceCheck price
At a glance
Leads on
  • Value
  • Navigation
  • Mopping
  • Obstacle Avoidance
  • Ease of Use
Pros
  • Track mop scraped and rinsed 110 times a minute at 12 N of pressure
  • Two RGB cameras with an AI chip, no turret, 95 mm tall
  • Mop and side brush extend to the wall; 30 mm sills, 40 mm as a two-step
  • 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
Cons
  • 22,000 Pa, well under the Flow 2
  • No mop-wash temperature or detergent dosing named for the standard dock
  • Positioning by cameras alone, with no low-light claim
  • Positioning by cameras alone, with no low-light claim from Narwal
  • Narwal's pages give the mop lift as 10 mm or 12 mm
  • No bin, tank, runtime, weight or map count published
Best for
  • Hard-floor homes that want the Flow 2's mop for less
  • Kitchens with dried-on stains
  • Hard floors with sticky spills, where a roller beats pads
  • Low furniture that a turret would not clear
Score breakdown
Verdict Score78/10079/100
Cleaning
93
93
Navigation
59
64
Mopping
91
92
Obstacle Avoidance
85
90
Automation
90
90
Ease of Use
94
95
Reliability
66
66
Value
38
31
Specifications

In green: the better figure where the direction is beyond argument, such as more lawn or less noise. Where it depends on your home, nothing is marked.

Cleaning
Suction22,000 Pa31,000 Pa
Brush systemTangle-resistantTangle-resistant
Side brushes11
Carpet boostYesYes
DustbinNot publishedNot published
Carpet pressure plateNot publishedSealed to the carpet, 4.2× suction by Narwal's measure
Edge distanceNot published5 mm
Navigation
MappingCamera SLAMCamera SLAM
Obstacle avoidanceTwin-camera AITwin-camera AI
Saved floor plansNot publishedNot published
Threshold climb30 mm40 mm
Mopping
Mop typeWashed rollerWashed roller
Mop lift12 mmYes
Extending mopYesYes
Water tankNot publishedNot published
Mop rinsingScraper and flowing water, 110 times a minute, 16 nozzlesFresh water flows over the track mop while it cleans
Mop water temperature45 °C60 °C
Mop pressure12 N, 1.22 kg7 to 12 N
Lift on carpetNot published10 mm on the EU page and in the US key features; 12 mm in the US FAQ and on the German page
Dock
Self-emptyingYesYes
Mop washingYesYes
Mop wash temperatureNot published100 °C
Mop dryingYesYes
Water refillYesYes
Plumbed drainNoNo
Dust bag interval120 days120 days
Dock size430 × 402 × 461 mm450 × 360 × 530 mm
Hot-water self-cleaning80 °C on the EU page and in the German body text; 60 °C in a German headingNot published
Warm-air drying45 °C, named on the German page only40 °C on the EU and US pages; 60 °C on the German page
Plumbed refill and drainOptional kit at extra cost, DIY installationNot published
Detergent dispensingNot publishedAutomatic
Software
No-go zonesYesYes
Pet recognitionNoYes
Power
Battery6,400 mAh7,000 mAh
RuntimeNot publishedNot published
Charging timeNot publishedNot published
Connectivity
Wi-FiYesYes
BluetoothNoNo
4G / LTENoNo
Voice controlYesYes
Physical
WeightNot publishedNot published
L × W × H351 × 364 × 95 mm351 × 364 × 95 mm
NoiseNot published57 dB
Support
WarrantyNot publishedNot published
ReleasedNot publishedNot published
Obstacles
Double-layer threshold40 mmNot published
Cameras2 × RGB with an AI chip2 × 1080p, 10 TOPS chip
Smallest detected obstacleNot published5 mm

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