Both robots share the same core toolkit: LiDAR-plus-camera navigation,
high-precision mapping, multi-floor maps, automatic dirt emptying, automatic
mop washing, and automatic mop lifting. Where they diverge is raw cleaning
hardware. The Flow 2 pulls 31,000 Pa of suction against the Curv 2
Flow’s 20,000 Pa, runs quieter at 56 dBA versus 63 dBA,
and sits noticeably lower at 9.5 cm versus 11.9 cm, which lets it
reach under more furniture. Its threshold clearance is also double:
40 mm versus 20 mm. The battery backs this up too, with
7,000 mAh and 275 minutes of runtime against 5,200 mAh and
242 minutes.
The Curv 2 Flow answers with the one feature that matters most for
hands-off use: the dock refills its water tank automatically, something
the Flow 2 cannot do, since its tank has to be topped off by hand. It also
carries two side brushes instead of one, plus a slightly larger dustbin
and disposable dust bag. If your home has low furniture, thick carpet
edges, or you simply want quieter operation, the Flow 2 has the stronger
hardware. If you would rather never touch the water tank and want the
more hands-off dock experience, the Curv 2 Flow trades some raw power for
that convenience.
2026 launches, suction power (Pa)
Qrevo Curv 2 Flow
Flow 2
…
9
Roborock Qrevo Curv 2 Flow
20,000 Pa
2026 launches, noise level in dBA (lower is better)
Qrevo Curv 2 Flow
Flow 2
5
Roborock Qrevo Curv 2 Flow
63 dBA