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.
Both appear in
Brand guides
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
Shop links are affiliate links: a purchase through them may earn RoboVerdict a commission, which never changes a ranking.

Narwal press image

Narwal press image
Full specification, side by side
| Compare | Narwal Narwal Flow | Narwal Narwal Flow 2 |
|---|---|---|
![]() | ![]() | |
78/100 $1,500Price in the manufacturer's shop | 79/100 $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 price | Check price | |
| At a glance | ||
| Leads on |
|
|
| Pros |
|
|
| Cons |
|
|
| Best for |
|
|
| Score breakdown | ||
| Verdict Score | 78/100 | 79/100 |
| 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 | ||
| Suction | 22,000 Pa | 31,000 Pa |
| Brush system | Tangle-resistant | Tangle-resistant |
| Side brushes | 1 | 1 |
| Carpet boost | Yes | Yes |
| Dustbin | Not published | Not published |
| Carpet pressure plate | Not published | Sealed to the carpet, 4.2× suction by Narwal's measure |
| Edge distance | Not published | 5 mm |
| Navigation | ||
| Mapping | Camera SLAM | Camera SLAM |
| Obstacle avoidance | Twin-camera AI | Twin-camera AI |
| Saved floor plans | Not published | Not published |
| Threshold climb | 30 mm | 40 mm |
| Mopping | ||
| Mop type | Washed roller | Washed roller |
| Mop lift | 12 mm | Yes |
| Extending mop | Yes | Yes |
| Water tank | Not published | Not published |
| Mop rinsing | Scraper and flowing water, 110 times a minute, 16 nozzles | Fresh water flows over the track mop while it cleans |
| Mop water temperature | 45 °C | 60 °C |
| Mop pressure | 12 N, 1.22 kg | 7 to 12 N |
| Lift on carpet | Not published | 10 mm on the EU page and in the US key features; 12 mm in the US FAQ and on the German page |
| Dock | ||
| Self-emptying | Yes | Yes |
| Mop washing | Yes | Yes |
| Mop wash temperature | Not published | 100 °C |
| Mop drying | Yes | Yes |
| Water refill | Yes | Yes |
| Plumbed drain | No | No |
| Dust bag interval | 120 days | 120 days |
| Dock size | 430 × 402 × 461 mm | 450 × 360 × 530 mm |
| Hot-water self-cleaning | 80 °C on the EU page and in the German body text; 60 °C in a German heading | Not published |
| Warm-air drying | 45 °C, named on the German page only | 40 °C on the EU and US pages; 60 °C on the German page |
| Plumbed refill and drain | Optional kit at extra cost, DIY installation | Not published |
| Detergent dispensing | Not published | Automatic |
| Software | ||
| No-go zones | Yes | Yes |
| Pet recognition | No | Yes |
| Power | ||
| Battery | 6,400 mAh | 7,000 mAh |
| Runtime | Not published | Not published |
| Charging time | Not published | Not published |
| Connectivity | ||
| Wi-Fi | Yes | Yes |
| Bluetooth | No | No |
| 4G / LTE | No | No |
| Voice control | Yes | Yes |
| Physical | ||
| Weight | Not published | Not published |
| L × W × H | 351 × 364 × 95 mm | 351 × 364 × 95 mm |
| Noise | Not published | 57 dB |
| Support | ||
| Warranty | Not published | Not published |
| Released | Not published | Not published |
| Obstacles | ||
| Double-layer threshold | 40 mm | Not published |
| Cameras | 2 × RGB with an AI chip | 2 × 1080p, 10 TOPS chip |
| Smallest detected obstacle | Not published | 5 mm |
Also worth a look
- Dreame89
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.
- Dreame79
Dreame L60 Ultra
Flagship sensing without the climbing legs: 35,000 Pa with a carpet boost, a LiDAR that retracts to 89 mm, two AI cameras with structured light, and a dock that washes at 100 °C and dries at 45 °C.
- Dreame79
Dreame X60 Ultra
The X60 for low furniture: 79.5 mm with the turret down, 35,000 Pa, legs for a 4.5 cm sill or 8.8 cm double step, two AI cameras, a 6,400 mAh battery charged in 80 minutes and a 100 °C wash.