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  3. Z70 Ultra Roller vs Saros 20 Flow

Mova Z70 Ultra Roller vs Roborock Saros 20 Flow

What Z70 Ultra Roller does better (4) and where Saros 20 Flow wins (4) — every spec side by side.

Mova Z70 Ultra Roller
Mova · 2026Z70 Ultra Roller
9.7Score
4 advantages≈ US$900
Higher score
vs
Roborock Saros 20 Flow
Roborock · 2026Saros 20 Flow
9.6Score
4 advantages≈ US$1,400
9.5Cleaning power8.3
9.3Navigation9.3
9.2Mopping9.6
8.8Base station6.0
9.4Battery9.8
Dimensions

Size comparison

Z70 Ultra RollerSaros 20 Flow
350 × 96350353 × 90353
Z70 Ultra RollerSaros 20 FlowDifference
Height96 mm90 mm+6 mm
Width / diameter350 mm353 mm−3 mm
Length350 mm353 mm−3 mm

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

Why is Z70 Ultra Roller better than Saros 20 Flow?

  1. Threshold climbing90 mm vs 88 mm+2%
  2. Dust bag (dock)4 l vs 2.7 l+48%
  3. Clean water tank (dock)5.5 l vs 4 l+38%
  4. Cleaning area per charge250 m² vs 200 m²+25%

Why is Saros 20 Flow better than Z70 Ultra Roller?

  1. Runtime225 min vs 300 min+33%
  2. Mop lift height13 mm vs 15 mm+15%
  3. Height96 mm vs 90 mm+7%
  4. Charging time180 min vs 150 min+20%
Specifications

Side by side

Roborock Saros 20 FlowRoborock Saros 20 Flow≈ US$1,4009.6
Suction & cleaning
Suction power36,000 Pa36,000 Pa
Dustbin (robot)—245 ml
Main brushDual main brushesSingle main brush
Anti-tangle brushYesYes
Side brushes12
Extending side brushYesYes
Carpet detectionYesYes
Dirt detectionYesYes
HEPA filterYes—
UV disinfectionYes—
Noise level—67 dB
Navigation & obstacles
NavigationLaser (LiDAR)Laser (LiDAR)
Navigation sensorsLiDAR laser (LDS), Retractable LiDAR, Wall sensor, Cliff sensorsLiDAR laser (LDS), Retractable LiDAR, Wall sensor, Cliff sensors
Retractable LiDARYesYes
Obstacle avoidanceAI cameraAI camera
Threshold climbing90 mm88 mm
No-go zones / virtual wallsYesYes
Room mapping & room selectionYesYes
Mopping
Mop typeRoller mopRoller mop
Mop lifting on carpetsYesYes
Mop lift height13 mm15 mm
Extending mop (edges)YesYes
Base station
Base stationAll-in-one dock (empty + wash)All-in-one dock (empty + wash)
Auto-empty dust stationYesYes
Dust bag (dock)4 l2.7 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 l4 l
Dirty water tank (dock)4.5 l—
Battery & runtime
Battery capacity6,400 mAh6,400 mAh
Runtime225 min300 min
Charging time180 min150 min
Cleaning area per charge250 m²200 m²
Size & weight
Width / diameter350 mm353 mm
Length350 mm353 mm
Height96 mm90 mm
Weight—5 kg
ShapeRoundRound
ColoursBlackBlack
App & smart home
App controlYesYes
Voice assistantsAmazon Alexa, Google AssistantAmazon Alexa, Google Assistant, Apple Siri
Matter—Yes
Live camera view / video callYesYes
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