Robot Vacuum Comparison · UK 2026
Roborock Saros 20 Neo vs Roborock Saros Z70

Specs, pros and cons compared side by side

Both the Roborock Saros 20 Neo and the Roborock Saros Z70 are robot vacuum-mops with self-emptying, mop-washing docks. This head-to-head sets them side by side using the specs, pros and cons from our full reviews. Roborock specs come from Roborock’s own UK pages and manuals.

Quick verdict

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Roborock Saros 20 Neo

Pick it for: 36,000Pa suction (the Saros Z70: 22,000Pa) · Mop wash with water up to 100°C (the Saros Z70: up to 80°C) · Climbs double thresholds up to 8.8 cm (the Saros Z70: up to 4 cm)

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Roborock Saros Z70

Pick it for: StarSight 2.0 navigation with cameras on the arm and front (the Saros 20 Neo: retractable LDS laser)

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Quick comparison

Spec Roborock Saros 20 Neo Roborock Saros Z70
Suction 36,000Pa 22,000Pa
Navigation Retractable LDS + structured light and RGB camera StarSight 2.0, cameras on the arm and front
Mopping Dual spinning pads, 200 RPM, up to 14N, FlexiArm, auto removal FlexiArm Riser Mop, 22 mm lift, auto removal
Dock Empty, wash up to 100°C, 55°C dry, refill, detergent Empty, wash up to 80°C, 55°C dry, refill, detergent
Runtime Not stated Not stated
Smart home Alexa, Siri, Google, Matter Alexa, Siri, Google (Matter by update)
Roborock Saros 20 Neo

Pros

  • 36,000Pa suction
  • Up to 14N mop pressure
  • Mop wash with water up to 100°C
  • Climbs double thresholds up to 8.8 cm

Cons

  • Roborock does not publish the runtime or tank sizes
  • No StarSight 2.0 navigation (the Saros Z70 has it)
  • Large dock (402 x 494 x 450 mm)
Roborock Saros Z70

Pros

  • Robotic arm moves small items out of the way
  • StarSight 2.0 navigation with two cameras
  • Automatic detergent from a 590 ml tank
  • Slim 7.98 cm body

Cons

  • Lower suction: 22,000Pa (the Saros 20 Neo: 36,000Pa)
  • Matter support is still to come by update
  • The arm lifts items up to 300 g only

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Which should you buy?

Why choose the Roborock Saros 20 Neo

  • 36,000Pa suction (the Saros Z70: 22,000Pa)
  • Mop wash with water up to 100°C (the Saros Z70: up to 80°C)
  • Climbs double thresholds up to 8.8 cm (the Saros Z70: up to 4 cm)
Why choose the Roborock Saros Z70

  • StarSight 2.0 navigation with cameras on the arm and front (the Saros 20 Neo: retractable LDS laser)

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