Roborock Saros Z70 Robot Vacuum and Mop

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Brand: Roborock

3.5

(3)

Mapping/navigation accuracy (robotics)
“the SOS z70 also has a new navigation system”
Mechanical arm object-moving feature
“equipped with a 5axis Roborock mechanical arm branded as Omni grip technology”
Object recognition
“has Precision sensors a camera and an LED light and it can accurately identify grip and relocate items”
Threshold crossing ability
“sort of jacks up the robot to allow it to clear large thresholds”

Mechanical arm object-moving feature
has a five-axis arm that will pop out when it sees certain types of objects

Battery runtime / Charging time
Rated at 180 min; efficiency tests placed it slightly above the category average.
Build quality & durability
Overall hardware felt solid and well-constructed despite performance drawbacks.
Docking/charging ease (robotic)
Robot consistently aligned and docked with the base without issues.
Edge-cleaning effectiveness
Extending side brush and edge-stretching mop pad improved corner coverage noticeably.
Mobile-app functionality & reliability
Roborock app offers voice control, smart planning, virtual barriers, and rock-solid connectivity.
Mop lifting system
Dual pads lift 22 mm to keep carpets dry during mopping runs.
Mopping performance (robotic or wet-dry)
Achieved the second-best dried-on-stain score recorded, leaving almost no residue.
Obstacle & cliff avoidance (robots)
Scored 22 / 24 in obstacle-avoidance trials, well above the field average.
Self-cleaning mop function
Base washes pads with 80 °C water and then heat-dries them for hygiene.
Self-emptying base
Dock empties the tiny on-board bin into a 2.7 L disposable bag for hands-free maintenance.
Under-furniture clearance
Ultra-slim 3.14-inch height let it glide under more furniture than typical robots.

Airflow (CFM)
Airflow registered right at the category average.
Coverage efficiency (how completely a robot covers a floor)
Coverage speed and thoroughness landed roughly at the midpoint of current models.
Price
Priced higher than Roborock Edge or S5 Max while offering weaker core vacuum performance.

Cleaning performance on carpet
Deep-carpet test placed it around 114th—well under typical performance levels.
Crevice‑cleaning effectiveness
Failed to pull debris from deep crevices as effectively as peers.
Dust-bin capacity
On-board bin holds only 180 mL—the smallest yet in our tests.
Hair-wrap prevention / anti-tangle tech
Active hair-removal system left more tangles than typical competitors.
Mechanical arm object-moving feature
The OmniGrip arm succeeds only about half the time and handles a very limited set of objects.
Pet-hair pickup efficiency
Pet-hair pickup on carpet scored far below average in testing.
Suction power (air watts)
Measured suction at the intake was below average despite lofty spec figures.