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  3. Z70 Ultra Roller vs Flow 2

Mova Z70 Ultra Roller vs Narwal Flow 2

What Z70 Ultra Roller does better (5) and where Flow 2 wins (2) — every spec side by side.

Mova Z70 Ultra Roller
Mova · 2026Z70 Ultra Roller
9.7Score
5 advantages≈ US$860
Higher score
vs
Narwal Flow 2
Narwal · 2026Flow 2
9.7Score
2 advantages≈ US$970
9.5Cleaning power9.5
9.3Navigation9.1
9.2Mopping8.8
9.1Base station7.8
9.4Battery9.7
Dimensions

Size comparison

Z70 Ultra RollerFlow 2
350 × 96350364 × 95364
Z70 Ultra RollerFlow 2Difference
Height96 mm95 mm+1 mm
Width / diameter350 mm364 mm−14 mm
Length350 mm364 mm−14 mm

Drawn to the same scale from the official dimensions (front and side).

Why is Z70 Ultra Roller better than Flow 2?

  1. Threshold climbing90 mm vs 40 mm2.2×
  2. Suction power36,000 Pa vs 31,000 Pa+16%
  3. Mop lift height13 mm vs 12 mm+8%
  4. Dust bag (dock)4 l vs 2.4 l+67%
  5. Clean water tank (dock)5.5 l vs 5 l+10%

Why is Flow 2 better than Z70 Ultra Roller?

  1. Runtime225 min vs 350 min+56%
  2. Cleaning area per charge250 m² vs 289 m²+16%
Specifications

Side by side

Narwal Flow 2Narwal Flow 2≈ US$9709.7
Suction & cleaning
Suction power36,000 Pa31,000 Pa
Dustbin (robot)—300 ml
Main brushDual main brushesSingle main brush
Anti-tangle brushYesYes
Side brushes11
Extending side brushYes—
Carpet detectionYesYes
Dirt detectionYesYes
HEPA filterYes—
UV disinfectionYes—
Noise level—56 dB
Navigation & obstacles
NavigationLaser (LiDAR)Laser (LiDAR)
Navigation sensorsLiDAR laser (LDS), Retractable LiDAR, Wall sensor, Cliff sensorsLiDAR laser (LDS), Cliff sensors
Retractable LiDARYes—
Obstacle avoidanceAI cameraAI camera
Threshold climbing90 mm40 mm
No-go zones / virtual wallsYesYes
Room mapping & room selectionYesYes
Mopping
Mop typeRoller mopRoller mop
Mop lifting on carpetsYesYes
Mop lift height13 mm12 mm
Extending mop (edges)YesYes
Water tank (robot)—130 ml
Base station
Base stationAll-in-one dock (empty + wash)All-in-one dock (empty + wash)
Auto-empty dust stationYesYes
Dust bag (dock)4 l2.4 l
Mop washing in the dockYesYes
Hot-water mop washingYesYes
Hot-air mop dryingYesYes
Automatic water refillYesYes
Plumbed water connectionYes—
Clean water tank (dock)5.5 l5 l
Dirty water tank (dock)4.5 l4.7 l
Battery & runtime
Battery capacity6,400 mAh6,500 mAh
Runtime225 min350 min
Charging time180 min180 min
Cleaning area per charge250 m²289 m²
Recharge & resume—Yes
Size & weight
Width / diameter350 mm364 mm
Length350 mm364 mm
Height96 mm95 mm
Weight—5 kg
ShapeRoundRound
ColoursBlackGrey
App & smart home
App controlYesYes
Voice assistantsAmazon Alexa, Google AssistantAmazon Alexa, Google Assistant, Apple Siri
Live camera view / video callYesYes
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