Roborock Qrevo Curv 2 Flow vs Roborock Saros 20
Researched by Riley Hart · prices checked Oct 26, 2026
As of Oct 26, 2026, the Roborock Qrevo Curv 2 Flow costs $1,000 and the Roborock Saros 20 costs $1,600, so the Roborock Qrevo Curv 2 Flow is $600 cheaper. The Roborock Qrevo Curv 2 Flow scores higher in our ranking (6.6 vs 5.8 out of 10). Pick the Roborock Qrevo Curv 2 Flow for hard floor apartments. Pick the Roborock Saros 20 for low furniture and tall thresholds.
- Suction
- 20,000 Pa
- Navigation
- LiDAR
- Mopping
- Roller mop
- Runtime
- 100 to 125 min tested
A strong pick for apartments and homes that are mostly hard floor, because the self cleaning roller mop scrubs harder than the spinning pads on older Qrevo models. Reviewers found edge and corner cleaning inconsistent and small object avoidance only average. Skip it if you have low furniture, lots of carpet or want detergent dosing built into the dock.
Full Roborock Qrevo Curv 2 Flow review →- Suction
- 36,000 Pa
- Navigation
- 3D ToF and camera
- Mopping
- Spinning pads
- Runtime
- About 200 min
A strong pick for mixed carpet and hard floor homes with low furniture and tall door thresholds, since it is under 3.2 in tall and climbs higher steps than any robot Vacuum Wars has tested. Reviewers rate its suction and edge cleaning highly but split on mopping, and Tom's Guide found the pads streaky. If spotless mopping is your main goal, a roller mop model may suit you better.
Full Roborock Saros 20 review →Side by side
| Roborock Qrevo Curv 2 Flow | Roborock Saros 20 | |
|---|---|---|
| Price | $1,000 | $1,600 |
| 3 year cost | $1,000 | $1,600 |
| Our score | 6.6/10 | 5.8/10 |
| Rank in Floors | #15 | #21 |
| Status | on sale | on sale |
| Warranty | 1 year (Roborock US store) | 1 year limited (Roborock US store) |
| Suction | 20,000 Pa (Roborock); Vacuum Wars measured 16 CFM airflow | 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow |
| Navigation | PreciSense LiDAR, multi level maps for up to four floors | StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, no LiDAR turret |
| Obstacle avoidance | Reactive AI with structured light and an RGB camera, 200+ object types (Roborock); Vacuum Wars scored it 16 of 24 objects avoided | Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects avoided |
| Mopping | Yes, SpiraFlow 270 mm self cleaning roller mop with up to 15 N pressure, lifts 15 mm and deploys a guard on carpet; no mop only mode | Yes, dual spinning pads with up to 13 N pressure, FlexiArm extending pad, 20 mm lift on carpet |
| Self empty | Yes, empties into a disposable 2.5 L dust bag in the dock | Yes, auto empties into a disposable bag; Roborock says a bag lasts up to 65 days |
| Dock features | Washes the roller with 167°F water and dries it with warm air up to 131°F; about 4 L clean and 3 L dirty water tanks; no detergent tank and no plumbed refill | RockDock washes pads with water up to 212°F, dries at 131°F, auto refills water, doses detergent and dries the dust bag |
| Runtime | Roborock claims 228 min vacuum only; CyberShack measured 100 to 125 min in mixed use; about 3 hr to recharge | 6,400 mAh battery; BGR cites about 200 min per charge and about 150 min to recharge |
| Dustbin | 325 ml onboard (Vacuum Wars); 2.5 L bag in the dock | 260 mL onboard bin (Vacuum Wars) |
| Height | 4.7 in (119 mm) | 3.14 in (79.8 mm) robot height per Roborock |
| Pet hair | DuoDivide main brush and anti tangle side brushes; 0% tangles in Vacuum Wars 7 inch hair test, 77.5% flattened pet hair pickup | Vacuum Wars measured 88% flattened pet hair pickup and 0% hair wrap |
| App | Roborock app with no go zones, room selection and remote camera; works with Alexa, Google Home and Siri | Roborock app with Matter, Alexa and Google Home support plus built in voice control |
| Threshold | 20 mm in Vacuum Wars testing | Up to 3.46 in double layer thresholds with AdaptiLift Chassis 3.0 (brand claim); Vacuum Wars cleared a 57 mm single step |
| Best for | hard floor apartments | low furniture and tall thresholds |
| Skip if | you need it to fit under low furniture | mopping is your top priority |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Roborock Qrevo Curv 2 Flow
- CyberShack (8.7/10): Excellent hard floor vacuuming at 91% to 95% and good mopping close to skirting, above average on short and medium pile carpet, but weak on carpet pet hair and no edge or corner cleaning on carpet. Measured 100 to 125 minutes of real runtime. Source
- Gizmodo: Called the roller mop the most powerful robot mop it had tested where it can reach, with good hair and sand pickup, but edge gaps of around 8 inches at times, a swallowed USB C cord and sock, and limited battery for large homes. Source
- Vacuum Wars (3.64/5): Strong vacuum with 87% carpet sand removal and 0% hair tangles, but a combined mopping score of 13.7 against a 22.75 category average and 16 of 24 obstacles avoided. Headline verdict: strong vacuum, disappointing mopping. Source
Roborock Saros 20
- Vacuum Wars (3.81/5): Lab tests found 89% sand removal from carpet, 88% flattened pet hair pickup, 0% hair wrap, 17 of 24 obstacles avoided, a record 57 mm threshold climb and an above average combined mopping score; battery coverage was slightly below average at about 1,038 sq ft per charge. Source
- CGMagazine (8.5/10): Performed strongly on pet hair, sand and fine dust on carpet and hard floors and fit under low furniture; reviewer flagged middling battery life, a small bin and trouble with loose cables. Source
- Tom's Guide: Picked up 100% of cereal and kitty litter on carpet and 70% of pet hair on carpet, but mopping left floors streaky and patchy and the pads fell off once crossing a cable. Source
Pros and cons
Roborock Qrevo Curv 2 Flow
Pros
- Self cleaning roller mop with real downward pressure
- Strong hair pickup with no tangles in testing
- Hot water wash and warm air dry for the roller
- Mop lifts and is shielded over carpet
Cons
- Edges and corners missed in several reviews
- 4.7 in tall, misses some low cabinets and couches
- No detergent tank and no mop only mode
- Swallowed a cord and a sock in Gizmodo testing
Roborock Saros 20
Pros
- Very low 3.14 in body fits under most furniture
- Record threshold climbing in Vacuum Wars testing
- Strong suction and carpet pickup
- Excellent edge cleaning with extending arm and pad
- Dock washes pads in near boiling water
Cons
- Expensive at $1,599.99
- Mopping left streaks in Tom's Guide testing
- Small 260 mL onboard bin
- Still catches cables and gets stuck at times
Questions buyers ask
Which is better, the Roborock Qrevo Curv 2 Flow or the Roborock Saros 20?
The Roborock Qrevo Curv 2 Flow scores higher in our ranking (6.6 vs 5.8 out of 10). Pick the Roborock Qrevo Curv 2 Flow for hard floor apartments. Pick the Roborock Saros 20 for low furniture and tall thresholds.
Which is cheaper?
The Roborock Qrevo Curv 2 Flow at $1,000, versus $1,600 for the Roborock Saros 20, checked Oct 26, 2026. Over 3 years with running costs: $1,000 vs $1,600.
What is the difference between the Qrevo Curv 2 Flow and the Saros 20?
Suction: 20,000 Pa (Roborock); Vacuum Wars measured 16 CFM airflow on the Qrevo Curv 2 Flow, 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow on the Saros 20. Navigation: PreciSense LiDAR, multi level maps for up to four floors on the Qrevo Curv 2 Flow, StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, no LiDAR turret on the Saros 20. Obstacle avoidance: Reactive AI with structured light and an RGB camera, 200+ object types (Roborock)… on the Qrevo Curv 2 Flow, Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects… on the Saros 20.
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