Roborock Saros 20 Flow
For homes with lots of hard floor that want a roller mop with flagship suction and threshold climbing.
Amazon $1,699.99$1,699.99
3.7/5
The cheapest way into a dock that washes the mops, for small homes with low furniture. Its weak carpet cleaning and short range rule it out for bigger or carpeted homes.
- Washes mop + emptiesDock
- 75% measuredCarpet pickup
- LiDARNavigation
- Dual spinning padsMop
- 3.3 inHeight
- 1 h 41 minRun time
Check price at Amazon$379.99
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Just 85 mm (3.35 in) tall, so it cleans under low beds and sofas
- Picked up 96% of pet hair from carpet in Vacuum Wars’ test
- Dock empties the bin and washes the mops for well under the price of most self-cleaning robots
Cons
- Lifted only 75% of sand from carpet, near the bottom of Vacuum Wars’ results
- Covered only about 550 sq ft per charge, so larger homes need several runs
- Basic infrared obstacle sensing will snag cords and socks
- Mops dry with unheated air and the robot climbs only 18 mm thresholds
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Independent tests
What independent testers measured, on their own test floors with their own units. Carpet deep clean and pet hair are the share of debris lifted; these feed the Cleaning score.
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 75% | 96% | 0.5 | 546 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Vacuum | |
|---|---|
| Claimed suction | 7,000 Pa |
| Main brush | Rolling brush with Pro-Detangle Comb |
| Dustbin | 250 mL |
| Extending side brush | No |
| Mopping | |
| Mop | Dual spinning pads, lifts 10.4 mm |
| Mop lift | 10.4 mm |
| Leaves mop at dock | No |
| Extending mop | No |
| Dock | |
| Dock | Washes mop + empties |
| Self-empties | Yes |
| Dust bag | 3.1 L |
| Washes mop | Yes |
| Hot-water wash | No |
| Hot-air drying | No |
| Water hookup option | No |
| Clean water tank | 2.5 L |
| Navigation & app | |
| Navigation | LiDAR |
| Obstacle avoidance | Infrared and point laser for larger obstacles only |
| Climbs thresholds | 18 mm |
| Matter | No |
| Voice assistants | Alexa, Google Assistant |
| Build | |
| Height | 3.3 in (85 mm) |
| Retracting LiDAR | No |
| Battery | 3,200 mAh |
| Run time | Up to 1 h 41 min |
| Weight | 7.3 lb (3.3 kg) |
| Warranty | 1 year |
| Released | 2024-11 |
Alternatives in this type
Dreame X40 Ultra
Dreame’s 2024 flagship, now hard to find new; worth it only at a deep discount, as the X50 and L-series robots clean better.
Amazon
Roborock Saros 10
For homes with low furniture and pets that want a slim, hands-off robot; buy it on discount, as its deep carpet cleaning trails cheaper Roborocks.
Amazon $799.99$799.99
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