Robot Vacuums · Head-to-head

Roborock Qrevo CurvX vs Roborock Saros 20

Roborock Qrevo CurvX
Best Value

Roborock Qrevo CurvX

8.0/10
$749.99 at Amazon
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Roborock Saros 20
Best for Thick Rugs and High Thresholds

Roborock Saros 20

8.0/10
$1,599.99 at Amazon
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The short answer

Roborock Qrevo CurvX and Roborock Saros 20 finish almost level in our scoring (8.0 vs 8.0 out of 10), so the right pick depends on what you value most. Roborock Qrevo CurvX is stronger on navigation, obstacle avoidance and value. Roborock Saros 20 is stronger on cleaning performance, mopping, dock / automation and maintenance. At current verified prices, the Roborock Qrevo CurvX costs about $850.00 less.

Scores by criterion

CriterionRoborock Qrevo CurvXRoborock Saros 20
Cleaning Performance 7.892% embedded sand, but low measured suction and weaker on heavy pet hair. 8.589% sand, 88% pet hair (Vacuum Wars).
Navigation 8.3About 1,445 sq ft per charge (Vacuum Wars), better than the 1,170 average. 7.50.67 m²/min against a 0.70 average, and 1,038 sq ft against 1,170; climbed a 57 mm threshold.
Obstacle Avoidance 8.3Avoided 20 of 24 objects (Vacuum Wars). 7.3Avoided 17 of 24 objects (Vacuum Wars).
Mopping 7.8Liftable, extending pads; uses a lot of water. 8.3Combined score 25.2 against a 20.3 average.
Dock / Automation 8.5Auto-empty, 176°F washing, warm-air drying and refill. 8.8Full dock with 212°F washing and drying.
Maintenance 7.40% wrap, but the small bin needs emptying more often. 8.20% hair wrap, but the 260 mL bin is small.
Features / App 8.5Roborock app. 8.5Roborock app.
Noise 6.5Not measured; flat 6.5. 6.5Not measured; flat 6.5.
Value 8.5Near-flagship lab results, but the price depends on a third-party seller. 5.5$1,599.99 from a third-party seller.

Specifications

SpecRoborock Qrevo CurvXRoborock Saros 20
Suction 22,000 Pa 36,000 Pa
Workflow type Vacuum + mop, all-in-one dock Vacuum + mop, all-in-one dock
Runtime 220 minutes —
Robot Height 3.14 in 3.14 in
Auto Empty Yes Yes
Mop Washing Yes Yes
Mop Drying Yes Yes
Navigation Type Retractable LiDAR + structured light + RGB camera Vision-based navigation + Reactive AI obstacle avoidance
Mop Type Dual rotating pads, liftable, extending Dual rotating pads, liftable
Battery Capacity 6,400 mAh 6,400 mAh
Anti-Tangle Brush — Yes
Hot-Water Mop Wash — Yes

Roborock Qrevo CurvX

Pros

  • Strong carpet performance: 92% of embedded sand picked up
  • 0% hair wrap and 20 of 24 obstacles avoided
  • Long coverage of about 1,445 sq ft per charge
  • Slim 3.14-inch body
  • Hot-water mop washing and drying

Cons

  • Low measured suction (0.54 kPa) and a small bin
  • Weaker on heavy pet hair
  • Current low price comes from a third-party seller
  • Not for buyers who need the top mopping or avoidance scores

The best balance of performance, features and cost here. Buy it at a price well below list from a seller you trust, and it beats most robots that cost much more.

Full Roborock Qrevo CurvX review →

Roborock Saros 20

Pros

  • Record 57 mm threshold climb in lab testing
  • 89% embedded-sand pickup on carpet
  • 0% hair wrap
  • Above-average mopping score
  • Self-emptying, mop-washing and drying dock

Cons

  • Avoided 17 of 24 obstacles
  • Below-average coverage per charge
  • Small 260 mL bin
  • Tom's Guide reported leftover litter; premium price from a third-party seller

A specialist. If thick rugs and raised thresholds are your problem, it solves them better than anything else here. For general use, the Dreame or CurvX is the better buy.

Full Roborock Saros 20 review →

Both products are part of our guide The Best Robot Vacuums of 2026, where you can see every pick, how we score and current prices from each retailer.