Both robots use roller mops and dual-sensor navigation, so the real split comes down to how they clean. The Narwal Flow 2 brings 30,000 Pa of suction, a larger battery, taller 40 mm obstacle clearance, and a dock that adds detergent when washing the mop roller, making it the pick for pet homes and cluttered multi-story layouts. The Roborock Qrevo Curv 2 Flow spins its roller mop faster at 220 RPM with 15 N of pressure, adds a second side brush and a dual main brush, and costs less, which suits homes that are mostly hard floors.
Roller mops are still the newest mopping approach on the market, and here are two robots that both use one. That shared foundation makes this matchup unusually specific: instead of arguing over spinning pads versus vibrating ones, the decision comes down to how hard each roller scrubs, how much suction backs it up, and what the dock does afterward. Narwal leans into power and obstacle handling with 30,000 Pa and a 40 mm clearance height. Roborock counters with a faster-turning roller, more mop pressure, and a brush setup built for wide coverage. Different philosophies, same category.
Narwal Flow 2
out of 10Roborock Qrevo Curv 2 Flow
The Narwal Flow 2 takes the overall rating at 8.9 versus 8.1. Navigation is the widest gap, 8.8 against 7.6, helped by dual HD cameras and much taller obstacle clearance. Cleaning follows at 7.5 versus 6.7, tracking the suction difference. Value sits at 9.1 versus 8.6, so the Narwal earns its keep even though it costs a bit more. Features are essentially even, 9.6 against 9.7, since both docks handle washing, drying, and dust emptying.
Suction is the loudest difference: 30,000 Pa on the Narwal against 20,000 Pa on the Roborock, a gap you notice on rugs and in pet homes. But the Roborock builds its cleaning differently, using a dual main brush and two side brushes instead of one of each, which spreads debris capture across a wider path. Mopping flips the advantage back to Roborock, whose roller turns at 220 RPM with 15 N of pressure versus 80 RPM and 12 N. Then there's the dock: the Narwal adds detergent automatically during mop washing, so its roller comes out cleaner. Add the Narwal's 7,000 mAh battery against 5,200 mAh, its 40 mm obstacle clearance, and a two-year warranty versus one.
The Narwal hits 30,000 Pa against the Roborock's 20,000 Pa, which matters most on carpet and in corners where debris gets packed down. The Roborock answers with a dual main brush and two side brushes plus a 325 mL onboard dustbin, so it sweeps a wider path and holds more before emptying.
Both use roller mops, the most effective mopping design available right now, but the Roborock's roller spins at 220 RPM with 15 N of pressure versus the Narwal's 80 RPM and 12 N, so it scrubs harder on dried spills. The Roborock also lifts its mop 15 mm to keep carpet dry, and the Narwal carries a 130 mL onboard water tank for its runs.
Pet hair rewards suction, and the Narwal's 30,000 Pa pulls embedded fur out of rug fibers more reliably than the Roborock's 20,000 Pa. If you've got a shedder in the house, that 10,000 Pa difference is the single most useful number on this page.
Both pair LiDAR with a camera and 3D structured light, but the Narwal's dual HD cameras and 40 mm obstacle clearance let it read and climb over more of what's on your floor, which is why its navigation rating lands well ahead. The Roborock adds an LED to help its camera see in dark rooms and stores maps for up to four levels.
Both docks empty the dustbin and wash the mop, but the Narwal dock adds detergent automatically during each wash cycle, so the roller comes out cleaner. The Roborock washes with water only.
The Narwal's 7,000 mAh battery is a solid step up from the Roborock's 5,200 mAh, which means fewer mid-clean recharge trips in larger homes. The Roborock offers off-peak charging, letting it top up when electricity rates drop.
This one's a true tie. Both support built-in voice control plus Amazon Alexa, Google Assistant, and Apple, and both handle no-go zones, multi-level maps, and smart obstacle avoidance.
| Feature | Narwal Flow 2 | Roborock Qrevo Curv 2 Flow |
|---|---|---|
| Main Brush Type | Single (rubber & bristle) | Dual (rubber & bristle) |
| Suction Power | 30,000 Pa | 20,000 Pa |
| Auto Detergent Dispensing | Yes | No |
| Battery Life | 7,000 mAh | 5,200 mAh |
| Liftable Side Brush | No | Yes |
| Mop Moisture Levels | Adjustable | 30 |
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Go with the Narwal Flow 2 if pet hair, carpet, and cluttered floors define your cleaning problem. Pick the Roborock Qrevo Curv 2 Flow if you're mopping hard floors most of the time and want a faster-scrubbing roller for less money. Both automate the tedious parts well.
