Narwal Flow 2 Review: Better Than Roborock for Mopping?
The Flow 2 uses a rolling track mop instead of spinning pads. On hard floors, that difference is real and measurable. Whether it's worth the premium depends on what your home actually looks like.
Purchased with our own funds. Tested in our Canadian home over a multi-day protocol. No manufacturer loans, no sponsored review.
If mopping is the reason you're spending over CAD $1,500 on a robot vacuum, the Narwal Flow 2 deserves a serious look. It does one thing no Roborock model currently does — it mops with a rolling track system instead of spinning pads — and on hard floors, that difference shows up in real cleaning results. Whether that difference justifies the price and the trade-offs elsewhere depends on what your floors actually look like.
The short answer is that it's the best mopper in its class. The longer answer is more complicated.
Quick Verdict
Buy it if
Your home is predominantly hard floors and mopping quality is your primary reason for buying. The rolling track genuinely outperforms spinning pads on real kitchen and living room floors.
Don't buy it if
You have significant carpet, heavy pet hair, or need Roborock's depth of app control. The Flow 2 specialises in hard floors — it's not the most well-rounded choice at this price.
The honest position
The Flow 2 is the right robot for a home that treats mopping as a real cleaning task — not a damp cloth dragged behind a vacuum. For everything else, Roborock is the more balanced choice.
The Mopping Architecture Difference
Most robot vacuums mop by pressing spinning circular pads against the floor. The pads rotate to create friction, eventually saturate with dirty water, and get rinsed in the dock. It works — on a recently swept hard floor, spinning pads remove light surface film effectively. On a floor with real buildup, a saturated pad starts spreading grime in a circle rather than removing it.
The Narwal Flow 2 uses a rolling track — two counter-rotating rollers wrapped in mop cloth that moves like a tank tread across the surface. Instead of the same cloth section making repeated contact with the floor, fresh cloth cycles into contact continuously. The dirty section lifts away before it gets dragged back over clean floor.
On a kitchen floor with dried cooking residue, this produces measurably better results. The track applies consistent pressure and keeps cycling clean material into contact with the surface. In testing on the same floor under the same conditions, a manual wipe-down after a Flow 2 pass came back nearly clean. After spinning-pad competitors, manual follow-up consistently found residue — particularly around the cooking area where buildup is heavier.
The dock compounds this advantage: after each run, it washes the mop track with hot water and dries it with warm air. The mop begins each session clean and dry. In multi-week testing, there was no mildew odour — a real and underreported problem with spinning-pad robots that don't dry adequately.
Performance Breakdown
Vacuuming — Hard FloorsOutstanding
At 31,000 Pa on hard floors, the Flow 2 is past the point of diminishing returns — fine dust, pet hair on tile, grit tracked in from outside, and everyday debris all get extracted cleanly. Hard floor vacuuming is not where this robot needs defending.
Vacuuming — CarpetAdequate on low-pile only
The Flow 2 handles low-pile carpet adequately for daily maintenance. On medium or thick pile, extraction is less thorough than Roborock's flagship models — the brush roll and airflow path are optimised for hard floors, which is the Flow 2's primary environment.
Pet hair on carpet is where the limitation compounds. If your home has heavy-shedding pets and significant carpet coverage, the Flow 2 is not the right tool. See our pet hair guide for what actually handles that use case.
MoppingBest in class
On sealed hardwood, the rolling track produces floor cleanliness that's measurably better than spinning-pad competitors on the same surface. No wet streaks from a saturated pad dragged back and forth. On tile, the track's rolling action provides more penetration into grout lines than a flat pad pressed against the surface.
Water delivery is controlled — the system adjusts output based on surface type, avoiding the excess water that causes hardwood damage over time with some mopping systems.
Edge mopping is solid. The track extends close to baseboards and furniture edges, minimising the manual touch-up needed after a run — noticeably better than most spinning-pad robots at this price tier.
Navigation & MappingCompetent
LiDAR navigation, methodical row patterns, accurate multi-room mapping. In a standard Canadian home layout, it completes sessions efficiently without repeated coverage of the same areas.
The app handles scheduling, zone cleaning, and cleaning history — the core functions work. It's less polished than Roborock's, with fewer granular room-level controls and less refined no-go zone management. For daily set-and-forget use, it's fine. For power users who want deep per-room customisation, Roborock's software is ahead.
Base StationBest-in-class mop hygiene
Auto-empties the dustbin, washes the mop track with hot water, dries with warm air — all automated after each run. Battery coverage is approximately 1,500–1,800 sq ft per charge. The drying system is the standout: in multi-week testing, no mildew odour developed from the mop system. This is a genuine quality-of-life improvement that doesn't show up in spec sheets but matters every day.
Flow 2 vs Roborock: Direct Comparison
This is the comparison most buyers at this price tier are making. Here's the honest breakdown.
| Category | Narwal Flow 2 | Roborock Flagship | Edge |
|---|---|---|---|
| Mopping quality | Rolling track — best in class | Spinning pads — capable but inferior on buildup | Flow 2 |
| Hard floor cleaning | 31,000 Pa — excellent | 18,500–36,000 Pa depending on model — comparable | Tie |
| Carpet extraction | Adequate on low-pile; weaker on medium/thick | Strong — better airflow and brush design for carpet | Roborock |
| Pet hair on carpet | Not a strength | Stronger, especially Qrevo Curv and Saros 20 | Roborock |
| App ecosystem | Functional; less refined | More mature — deeper controls, longer track record | Roborock |
| Obstacle avoidance | Handles large obstacles; less precise on small clutter | More refined on higher-end models | Roborock |
| Dock mop drying | Hot wash + warm air dry — no mildew in testing | Varies by model; some less thorough on drying | Flow 2 |
| Canadian support | Newer brand — shorter track record in Canada | Well-established Canadian service and parts supply | Roborock |
| Value for hard-floor homes | Best mopping per dollar at this tier | Better value for mixed-floor or carpet-heavy homes | Flow 2 |
For a full head-to-head, see our Narwal Flow 2 vs Roborock Saros 20 comparison.
What Buyers Get Wrong
They assume mopping is equivalent across robots at this price
The difference between a passive drag cloth, spinning pads, and a rolling track isn't a small incremental improvement — it's a different mechanism that produces different results on the same floor. Buyers who've used robot mopping before and been underwhelmed have often been using spinning pad or passive cloth systems. The Flow 2's rolling track is a meaningful step up from both.
They buy it primarily for carpet
The Flow 2 is built for a hard-floor-primary home. Its vacuum performance is adequate but not exceptional on carpet. Buyers with a living room of medium-pile carpet who want deep extraction will be disappointed. This robot's specialisation is also its limitation.
They underestimate the mop maintenance difference
Spinning pad robots that don't dry their mops adequately develop a faint mildew smell within weeks of regular use. If you've owned one of these robots, you know the smell. The Flow 2's drying system addresses this directly — a quality-of-life improvement that doesn't show up on spec sheets but is noticeable every time the robot runs.
They overlook Narwal's shorter Canadian track record
Roborock has years of Canadian customer service history, consistent Amazon.ca parts availability, and a large base of Canadian owners. Narwal is newer to this market. The product quality is strong, but buyers who want the reassurance of an established Canadian service relationship should factor this in.
This is for you if
- ✓Your home is predominantly hard floors — hardwood, tile, laminate
- ✓You've used robot mopping before and been underwhelmed by spinning pads
- ✓You prioritise genuinely clean hard floors over the most capable carpet extraction
- ✓You can tolerate a newer brand in Canada without the established service history of Roborock
This is NOT for you if
- ✗Your home has significant medium or thick-pile carpet
- ✗You have heavy shedding pets on carpet
- ✗You need Roborock-level app depth — per-room customisation, mature no-go zones
- ✗You want the most refined obstacle avoidance for a regularly cluttered floor
- ✗You want a well-established Canadian service relationship from day one
Practical Checklist Before You Buy
Assess your floor composition
If more than 30% of your cleaning area is carpet, consider a Roborock flagship instead.
Verify current Canadian pricing on Amazon.ca
Prices shift as the product matures in the Canadian market — confirm before purchasing.
Check replacement bag and mop track availability
Confirm parts are available on Amazon.ca before you're dependent on them.
Consider your floor clutter habits
Clear the floor before runs, or consider a robot with stronger dedicated obstacle avoidance.
Factor in the Canadian support question
If you want a well-established Canadian service relationship, Roborock has more years behind it in this market.
FAQ
Is the Narwal Flow 2 available in Canada?▾
How is the rolling track mop different from spinning pads in practice?▾
Does the Narwal Flow 2 work on carpet?▾
How does the dock drying system work, and does it actually prevent mildew?▾
How does the Narwal Flow 2 compare to the Roborock Saros 20?▾
What's the battery coverage per charge?▾
Is the Narwal app reliable for everyday scheduling?▾
Conclusion
The Narwal Flow 2 is a genuine specialist. On hard floors, it mops better than anything else at its price point. The rolling track system is a real mechanical improvement over spinning pads, the dock drying cycle addresses the mildew problem most competitors quietly have, and the overall hard floor cleanliness result is noticeably better in real-world use.
The specialisation is also the limitation. Carpet performance is adequate but not strong. Pet hair on carpet is not a Flow 2 strength. The app hasn't had Roborock's years of iteration. And Narwal is a newer brand in the Canadian market — solid product, earlier stage support infrastructure.
For a home that's predominantly hard floors and treats mopping as a real cleaning task, the Flow 2 is the best robot vacuum for that specific job currently available in Canada. For a mixed-floor home or one where carpet performance, software depth, or established Canadian support matters more, the Roborock Saros 20 or Qrevo Curv is the stronger choice.