# Roborock Qrevo Curv 2 Flow vs Roborock Saros 20 Flow

As of Oct 31, 2026, the Roborock Qrevo Curv 2 Flow costs $800 and the Roborock Saros 20 Flow costs $1,700, so the Roborock Qrevo Curv 2 Flow is $900 cheaper. The Roborock Qrevo Curv 2 Flow scores higher in our ranking (7.0 vs 6.4 out of 10). Pick the Roborock Qrevo Curv 2 Flow for hard floor apartments. Pick the Roborock Saros 20 Flow for hard floor homes with tall thresholds.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/roborock-qrevo-curv-2-flow-vs-roborock-saros-20-flow/

## Side by side

| | Roborock Qrevo Curv 2 Flow | Roborock Saros 20 Flow |
|---|---|---|
| Price | $800 | $1,700 |
| 3 year cost | $800 | $1,777 |
| Our score | 7.0/10 | 6.4/10 |
| Rank in Floors | #19 | #30 |
| Status | on sale | on sale |
| Warranty | 1 year (Roborock US store) | 1 year (Roborock US store) |
| Suction | 20,000 Pa (Roborock); Vacuum Wars measured 16 CFM airflow | 36,000 Pa claimed (Roborock); House Digest could not verify it but estimated floors came out about 90% clean |
| Navigation | PreciSense LiDAR, multi level maps for up to four floors | Retractable LiDAR (RetractSense) that lowers under furniture, plus VertiBeam side structured light (Roborock) |
| Obstacle avoidance | Reactive AI with structured light and an RGB camera, 200+ object types (Roborock); Vacuum Wars scored it 16 of 24 objects avoided | Reactive AI with structured light and RGB camera, 300+ object types, objects down to 3 cm wide and 3 cm tall (Roborock); House Digest saw it get lost once |
| 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 | SpiraFlow 2.0 roller mop, up to 240 rpm, 15 N pressure, 16 pressurized outlets, extends up to 44 mm for edges and lifts up to 15 mm on carpet (Roborock) |
| Self empty | Yes, empties into a disposable 2.5 L dust bag in the dock | Yes, auto empty into a bag, up to 65 days without manual emptying (Roborock); bag size not listed |
| 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 | Roller wash with water up to 212°F, 145°F warm air drying, auto detergent dosing, warm water refill of the robot tank (Roborock) |
| Runtime | Roborock claims 228 min vacuum only; CyberShack measured 100 to 125 min in mixed use; about 3 hr to recharge | Not listed in minutes; Roborock says up to 200 m² per charge in standard vacuum and mop mode, 6,400 mAh battery, 150 min full charge |
| Dustbin | 325 ml onboard (Vacuum Wars); 2.5 L bag in the dock | n/a |
| Height | 4.7 in (119 mm) | 3.54 in robot height (Roborock landing page); the store page lists 89.8 mm |
| 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 | House Digest said heavy pet fur left no hair balls on the dual anti tangle brushes |
| App | Roborock app with no go zones, room selection and remote camera; works with Alexa, Google Home and Siri | Roborock app; works with Alexa, Siri, Google Home and Matter; built in Hello Rocky voice assistant (Roborock) |
| Threshold | 20 mm in Vacuum Wars testing | Double layer thresholds up to 3.46 in (88 mm) with AdaptiLift Traverse 3.0 (Roborock); House Digest saw it clear a baby gate with a thud |
| Noise | n/a | No dB figure from Roborock or the reviews we read; House Digest says Carpet Boost is the loudest mode |
| Best for | hard floor apartments | hard floor homes with tall thresholds |
| Skip if | you need it to fit under low furniture | you are on a budget or need spotless corners |

## 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](https://cybershack.com.au/cleaning/roborock-qrevo-curv-2-flow-another-great-robovac-roller-mop-review)
- 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](https://gizmodo.com/roborock-qrevo-curv-2-flow-review-ultimate-robot-mop-if-you-dont-have-corners-or-walls-2000745723)
- 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](https://vacuumwars.com/roborock-qrevo-curv-2-flow-review)

### Roborock Saros 20 Flow

- House Digest (9/10): Floors came out about 90% clean with some crumbs left in corners. Mopping fully removed ketchup and barbecue sauce and left wood almost dry. It cleared a baby gate but got lost once and had underwhelming edge cleaning. [Source](https://www.housedigest.com/2284562/roborock-saros-20-flow-review/)
- EFTM (92%): Australian review gave vacuuming 93%, mopping 93%, app 92% and features 93%. It cleaned dried jam and tomato sauce, needed two passes for Vegemite and struggled with crumbs near cabinets. Charging was slow. [Source](https://eftm.com/2026/09/review-roborock-saros-20-flow-thge-best-all-rounder-281056)

## Questions buyers ask

### Which is better, the Roborock Qrevo Curv 2 Flow or the Roborock Saros 20 Flow?

The Roborock Qrevo Curv 2 Flow scores higher in our ranking (7.0 vs 6.4 out of 10). Pick the Roborock Qrevo Curv 2 Flow for hard floor apartments. Pick the Roborock Saros 20 Flow for hard floor homes with tall thresholds.

### Which is cheaper?

The Roborock Qrevo Curv 2 Flow at $800, versus $1,700 for the Roborock Saros 20 Flow, checked Oct 31, 2026. Over 3 years with running costs: $800 vs $1,777.

### What is the difference between the Qrevo Curv 2 Flow and the Saros 20 Flow?

Suction: 20,000 Pa (Roborock); Vacuum Wars measured 16 CFM airflow on the Qrevo Curv 2 Flow, 36,000 Pa claimed (Roborock); House Digest could not verify it but estimated floors came… on the Saros 20 Flow. Navigation: PreciSense LiDAR, multi level maps for up to four floors on the Qrevo Curv 2 Flow, Retractable LiDAR (RetractSense) that lowers under furniture, plus VertiBeam side… on the Saros 20 Flow. Obstacle avoidance: Reactive AI with structured light and an RGB camera, 200+ object types (Roborock)… on the Qrevo Curv 2 Flow, Reactive AI with structured light and RGB camera, 300+ object types, objects down to 3… on the Saros 20 Flow.

Full reviews: [Roborock Qrevo Curv 2 Flow](https://robotsforthat.com/robot/roborock-qrevo-curv-2-flow/index.md), [Roborock Saros 20 Flow](https://robotsforthat.com/robot/roborock-saros-20-flow/index.md)