Roborock Saros 20 vs Roborock Qrevo Slim

Quick take: The Roborock Saros 20 costs $9 less; the Roborock Saros 20 has stronger suction (36,000 vs 11,000 Pa); the Roborock Saros 20 runs longer per charge (200 vs 180 min).

SpecRoborock Saros 20Roborock Qrevo Slim
Price~$1,390~$1,399
TypeRobot Vacuum & MopRobot Vacuum & Mop
Suction36000 Pa11000 Pa
Battery200 min180 min
NavigationLiDAR + CameraLiDAR
Filtration
CordlessYesYes
Bagged
Noise60 dB
Dustbin259 ml220 ml
Water tank69 ml550 ml
Self-empty dockYesYes
Auto mop washingYesYes
Hot water washingYesYes
Obstacle avoidanceYesYes
Carpet detectionYesYes
Auto mop liftingYesYes
Multi-floor mappingYesYes
App controlYesYes
Dimensions13.8 x 13.9 x 3.1 in13.78 x 13.9 x 3.2 in
Weight11.1 lbs
Warranty1 year1 year

Pros & cons

Roborock Saros 20

  • AdaptiLift 3.0 chassis climbs double-layer thresholds up to 3.46 inches - unmatched for split-level homes
  • 36,000Pa suction and a 6,400mAh battery cover large homes with up to 200 minutes of runtime
  • Embedded 3D ToF StarSight 2.0 LiDAR keeps the body at 3.1 inches to slide under low furniture
  • Dual spinning mops apply adaptive pressure up to 13N and get washed in 212°F hot water at the dock
  • Recognizes around 300 obstacle types with VertiBeam lateral avoidance for cables and clutter
  • At $1,599.99 it costs flagship money without the Sonic's vibrating deep-scrub mop
  • Small 69ml onboard water tank means constant dock returns on big mopping jobs
  • 259ml dustbin is modest for a vacuum aimed at large, complex homes
  • Tall multifunction dock demands a lot of floor and vertical clearance

Roborock Qrevo Slim

  • 3.2in ultra-slim body reaches under furniture that stops every full-height robot
  • Ranked #2 overall in independent testing, with mapping completed in about 5 minutes
  • Mopping scored higher than several pricier premium competitors
  • Above-average pet hair pickup despite the slimmed-down chassis
  • Multifunctional dock automates emptying, mop washing, drying, and water refilling
  • Small 220ml internal dustbin — needs frequent auto-empty cycles in heavy-pet-hair homes
  • Navigation occasionally struggled during zone cleaning after furniture was moved around
  • Bench-tested raw suction numbers ran below category average (though real-world cleaning didn't show the gap)
  • At roughly $1,400 you're paying flagship money specifically for the slim engineering
  • Manufacturer doesn't publish a noise level for this model