Roborock Qrevo CurvX vs Roborock Saros 20 Sonic
Researched by Riley Hart · prices checked Nov 4, 2026
As of Nov 4, 2026, the Roborock Qrevo CurvX costs $950 and the Roborock Saros 20 Sonic costs $1,700, so the Roborock Qrevo CurvX is $750 cheaper. The Roborock Qrevo CurvX has a published review score and ranks #28 in our robot vacuums ranking; the Roborock Saros 20 Sonic is not scored yet. Pick the Roborock Qrevo CurvX for hard floors and low furniture. Pick the Roborock Saros 20 Sonic for homes with tall thresholds and lots of carpet. They split the points we can measure, 4 each.
Who wins, point by point
They split the points we can measure, 4 each. Built from today's prices, the specs and independent tests for these two robots.
| Qrevo CurvX | Saros 20 Sonic | Winner | |
|---|---|---|---|
| Price today | $950 | $1,700 | Qrevo CurvX |
| 3 year cost | $1,052 | $1,777 | Qrevo CurvX |
| Warranty | 1 year | 1 year | Tie |
| Suction | 22,000 Pa | 36,000 Pa | Saros 20 Sonic |
| Runtime per charge | 4 h | 3 h | Qrevo CurvX |
| Onboard bin | 260 mL | 228 mL | Qrevo CurvX |
| Climbs thresholds up to | 1.57 in | 2.0 in (tested) | Saros 20 Sonic |
| Robot height (fits under furniture) | 3.2 in (tested) | 3.1 in | Saros 20 Sonic |
| Release year | 2025 | 2026 | Saros 20 Sonic |
- You want to spend less (saves $750)
- You care most about runtime per charge (4 h vs 3 h)
- You care most about onboard bin (260 mL vs 228 mL)
- Best for hard floors and low furniture
- You care most about suction (36,000 Pa vs 22,000 Pa)
- You care most about climbs thresholds up to (2.0 in (tested) vs 1.57 in)
- You care most about robot height (fits under furniture) (3.1 in vs 3.2 in (tested))
- Best for homes with tall thresholds and lots of carpet
- Suction
- 22,000 Pa
- Navigation
- Retractable LiDAR
- Mopping
- Dual spinning mops
- Runtime
- 240 min per Roborock
Slim retractable LiDAR robot with a hot water dock at half price
Full Roborock Qrevo CurvX review, pros and cons →- Suction
- 36,000 Pa claimed
- Navigation
- RetractSense
- Mopping
- Extendable VibraRise
- Runtime
- Up to 180 min vac
Slim flagship with a vibrating pad mop and huge threshold climbing
Full Roborock Saros 20 Sonic review, pros and cons →Side by side
| Roborock Qrevo CurvX | Roborock Saros 20 Sonic | |
|---|---|---|
| Price | $950 | $1,700 |
| 3 year cost | $1,052 | $1,777 |
| Our score | 6.9/10 | Not scored yet |
| Rank in Floors | #28 | #105 |
| Status | on sale | on sale |
| Warranty | 1 year (Roborock US store) | 1 year limited (Roborock US store) |
| Suction | 22,000 Pa (Roborock); TechGearLab measured about 79% of debris cleaned from carpet | 36,000 Pa claimed (Roborock); PC-WELT said it could not verify the figure in home testing |
| Navigation | Retractable LiDAR (RetractSense), ToF cliff sensors and RGB camera with LED light (Roborock) | RetractSense retractable LiDAR (Roborock); PC-WELT mapped about 103 m² in about 12 min |
| Obstacle avoidance | Reactive AI 3.0, 108 object types, down to 5 cm wide and 3 cm tall (Roborock); TechGearLab saw 88% of obstacles avoided, but Vacuum Wars saw it try to climb cables and toys | Reactive AI 3.0 with tri laser structured light, RGB camera and VertiBeam side laser (Roborock); Vacuum Wars scored 19 of 24 against a 16 average |
| Mopping | Dual spinning mops, up to 12 N pressure, up to 17 mm lift (Roborock); TechGearLab scored hard floor mopping 9.3 of 10 | Extendable VibraRise 5.0 flat vibrating pad, about 4,000 vibrations per min and 14 N pressure, lifts over carpet (Roborock); Vacuum Wars combined mopping score 15.8 against a 20.3 average |
| Self empty | Yes, up to 7 weeks per the store page, or up to 65 days per the series page (Roborock) | Yes, disposable bag in the dock (Roborock); PC-WELT cites a maker claim of up to 65 days per bag |
| Dock features | Dock 3.0 Thermo+ with 176°F mop wash, 113°F drying for 2 to 4 h, warm water refill (Roborock) | Mop washing with water up to 212°F, warm air drying at about 131°F, auto detergent dosing (Roborock, PC-WELT) |
| Runtime | 240 min per Roborock via TechGearLab; 6,400 mAh battery (Roborock) | Up to 180 min vac and mop at Balanced (Roborock); Vacuum Wars estimated about 1,225 sq ft per charge; PC-WELT used 103 min for 70 m² on turbo settings |
| Dustbin | Just under 260 ml (Vacuum Wars) | 228 ml robot bin (Vacuum Wars), against a 377 ml average |
| Height | 3.14 in (Roborock); TechGearLab measured 3.2 in | 79.8 mm, about 3.1 in, with the LiDAR retracted (Roborock) |
| Pet hair | TechGearLab measured 52% of pet hair cleaned; Vacuum Wars found the bin clogged almost daily with heavy shedding | Vacuum Wars measured 78% pet hair pickup against an 82% average, with 0% wrap on 7 in hair |
| App | Roborock app; Hello Rocky voice assistant; Alexa, Siri Shortcuts and Google Home; Matter promised by update (Roborock) | Roborock app; Matter enabled and works with Alexa, Siri and Google Home (Roborock) |
| Threshold | Double layer thresholds up to 1.57 in (4 cm) with AdaptiLift chassis (Roborock) | Roborock claims 8.8 cm on stepped double thresholds and 4.5 cm single sills; Vacuum Wars measured 57 mm; PC-WELT saw about 5 cm single thresholds in practice |
| Noise | TechGearLab measured 56.3 dB vacuuming and 64.4 dB during auto empty; Roborock says as low as 53 dB in mop only mode | PC-WELT measured about 55 to 58 dB(A) standard, 68 dB(A) max suction and 70 dB(A) while emptying (phone app at 1 m) |
| Best for | hard floors and low furniture | homes with tall thresholds and lots of carpet |
| Skip if | you have a heavy shedding pet | mopping sticky stains is your main job |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Roborock Qrevo CurvX
- Vacuum Wars (3.69 Vacuum Wars stars): Long term test in a 750 sq ft home with a dog. Mopping was strong with vacuum then mop runs and nothing wrapped the brush, but the 260 ml bin clogged almost daily and it often tried to climb objects and needed help. Source
- TechGearLab (85/100): Ranked first of 23 robots. Hard floor and mopping 9.3, carpet 8.4 with about 79% of debris cleaned, but only 52% of pet hair. Avoided 88% of obstacles. Measured 56.3 dB vacuuming. Source
Roborock Saros 20 Sonic
- Vacuum Wars (3.81 Vacuum Wars stars): 92% carpet deep clean (78% average), 0% hair wrap, 78% pet hair pickup (82% average), 19 of 24 obstacles avoided, 57 mm threshold climb, about 1,225 sq ft per charge. Dried stain score 62 against a 108 average, the main weakness. Source
- PC-WELT: Editors' Choice and named its new number one in the premium segment. Measured about 55 to 58 dB(A) in standard mode, cleaned 70 m² in 103 min on turbo settings, and handled single thresholds of about 5 cm in practice. Less effective than roller mops on dried dirt. Source
Questions buyers ask
Which is better, the Roborock Qrevo CurvX or the Roborock Saros 20 Sonic?
The Roborock Qrevo CurvX has a published review score and ranks #28 in our robot vacuums ranking; the Roborock Saros 20 Sonic is not scored yet. Pick the Roborock Qrevo CurvX for hard floors and low furniture. Pick the Roborock Saros 20 Sonic for homes with tall thresholds and lots of carpet.
Which is cheaper?
The Roborock Qrevo CurvX at $950, versus $1,700 for the Roborock Saros 20 Sonic, checked Nov 4, 2026. Over 3 years with running costs: $1,052 vs $1,777.
What is the difference between the Qrevo CurvX and the Saros 20 Sonic?
Suction: 22,000 Pa (Roborock); TechGearLab measured about 79% of debris cleaned from carpet on the Qrevo CurvX, 36,000 Pa claimed (Roborock); PC-WELT said it could not verify the figure in home testing on the Saros 20 Sonic. Navigation: Retractable LiDAR (RetractSense), ToF cliff sensors and RGB camera with LED light… on the Qrevo CurvX, RetractSense retractable LiDAR (Roborock); PC-WELT mapped about 103 m² in about 12 min on the Saros 20 Sonic. Obstacle avoidance: Reactive AI 3.0, 108 object types, down to 5 cm wide and 3 cm tall (Roborock)… on the Qrevo CurvX, Reactive AI 3.0 with tri laser structured light, RGB camera and VertiBeam side laser… on the Saros 20 Sonic.
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