A good fit for pet owners in smaller homes who want a heated mop wash and dry; its short measured range makes it a poor choice for big floor plans.
Amazon $599.99
For homes that want the Saros 20’s slim build and threshold climbing with a retractable LiDAR and a sonic mop.
- Washes mop + emptiesDock
- 92% measuredCarpet pickup
- LiDAR + cameraNavigation
- Vibrating padMop
- 3.1 inHeight
- 3 h 10 minRun time
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Part of the Roborock Saros 20 line: See every Roborock Saros 20 generation.
- Lifted 92% of sand worked into carpet, with nothing tangled, in Vacuum Wars’ tests
- Drops its mops at the dock before vacuuming carpet, so rugs stay dry
- Retracts its LiDAR to clean under furniture 3.1 in high
- Climbs stacked thresholds up to 3.46 in
- Picked up less pet hair from carpet (78%) than the standard Saros 20 in Vacuum Wars’ test
- Vibrating pad scrubs more lightly than spinning pads or a roller
- Out of stock on Amazon US when checked
The Roborock Saros 20 family
Every Roborock Saros 20 model we rank, smallest first. Ratings compare each against its own type.
| Model | Dock | Rating | Price |
|---|---|---|---|
| Roborock Saros 20 | Washes mop + empties | 3.9/5 | $1,599.99 |
| Roborock Saros 20 Sonic (this one) | Washes mop + empties | 4.2/5 | - |
| Roborock Saros 20 Flow | Washes mop + empties | 3.8/5 | $1,699.99 |
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 | 92% | 77.8% | 0 | 1,225 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 | 36,000 Pa |
| Main brush | DuoDivide anti-tangle brush |
| Dustbin | 228 mL |
| Extending side brush | Yes |
| Mopping | |
| Mop | Vibrating pad, leaves its mop at the dock for carpet |
| Mop lift | 8 mm |
| Leaves mop at dock | Yes |
| Extending mop | No |
| Water tank | 70 mL |
| Dock | |
| Dock | Washes mop + empties |
| Self-empties | Yes |
| Washes mop | Yes |
| Hot-water wash | Yes |
| Hot-air drying | Yes |
| Detergent dosing | Yes |
| Water hookup option | Yes |
| Navigation & app | |
| Navigation | LiDAR + camera |
| Obstacle avoidance | Reactive AI 3.0 obstacle recognition |
| Climbs thresholds | 88 mm |
| Matter | Yes |
| Voice assistants | Alexa, Google Assistant, Siri Shortcuts |
| Build | |
| Height | 3.1 in (79.8 mm) |
| Retracting LiDAR | Yes |
| Battery | 6,400 mAh |
| Run time | Up to 3 h 10 min |
| Warranty | 1 year |
Alternatives in this type
For most homes wanting a fully hands-off robot at a mid-range price, with strong carpet cleaning and long range.
Amazon $749.99A solid self-cleaning robot for low furniture and thresholds, but at its current price the Mobius 60 measured better for less.
Amazon $899Compare
Compare the Roborock Saros 20 Sonic with any other robot vacuum →
More from Roborock: every Roborock product ranked.