Roborock Saros 20
For mixed-floor homes with high thresholds and low furniture that want a flagship that also cleans carpet well.
Amazon Roborock $1,599.99$1,599.99
The Roborock Saros 20 is the better robot vacuum overall, rated 3.9 to 3.8. The Roborock Saros 20 leads on dock. The Roborock Saros 20 Flow wins on mopping. The Roborock Saros 20 costs $100 less ($1,599.99 vs $1,699.99).
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
Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Roborock Saros 20 for dock (Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup vs Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent).
- Choose the Roborock Saros 20 Flow for mopping (Roller, lifts 15 mm, extends to edges vs Dual spinning pads, leaves its mop at the dock for carpet, extends to edges).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Roborock Saros 20 | Roborock Saros 20 Flow |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Cleaning 30% | 80 measured 89% of sand from carpet, 88% of pet hair, no hair tangled | 74 measured 89% of sand from carpet, 76.2% of pet hair, no hair tangled |
| Value 25% | 7 $1,600 | 3 $1,700 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup | 90 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| Navigation 15% | 100 LiDAR + camera | 100 LiDAR + camera |
| Mopping 10% | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | 95 Roller, lifts 15 mm, extends to edges |
Independent tests
Roborock Saros 20
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 88% | 0 | 1,039 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). |
Roborock Saros 20 Flow
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 76.2% | 0 | 1,421 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
| Roborock Saros 20 | Roborock Saros 20 Flow | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 36,000 Pa | 36,000 Pa |
| Main brush | DuoDivide anti-tangle brush | dual anti-tangle brush system |
| Dustbin | 259 mL | 245 mL |
| Extending side brush | Yes | No |
| Mopping | ||
| Mop | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | Roller, lifts 15 mm, extends to edges |
| Mop lift | 15 mm | 15 mm |
| Leaves mop at dock | Yes | No |
| Extending mop | Yes | Yes |
| Water tank | 65 mL | 67 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | Yes | No |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | 3D ToF and RGB camera, recognises 300+ object types | Reactive AI with RGB recognition, 300+ object types |
| Climbs thresholds | 88 mm | 88 mm |
| Matter | Yes | Yes |
| Voice assistants | Alexa, Google Assistant, Siri Shortcuts | - |
| Build | ||
| Height | 3.1 in (79.8 mm) | 3.5 in (89.8 mm) |
| Retracting LiDAR | No | Yes |
| Battery | 6,400 mAh | 6,400 mAh |
| Run time | Up to 3 h 20 min | Up to 5 h 1 min |
| Weight | - | 11.5 lb (5.2 kg) |
| Warranty | 1 year | 1 year |
| Released | 2026-03 | 2026-09 |