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 and the Eufy Omni S2 are evenly matched, rated 3.9 and 3.9. The Roborock Saros 20 leads on navigation. The Eufy Omni S2 wins on value. The Eufy Omni S2 costs $300 less ($1,299.99 vs $1,599.99).
Eufy Omni S2
For buyers who want a low-slung flagship that mops with a hot-washed roller and handles tall thresholds. Cheaper robots match its carpet cleaning and run longer per charge.
Amazon $1,299.99$1,299.99
Prices were last checked October 27, 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 navigation (LiDAR + camera vs Camera + 3D light).
- Choose the Eufy Omni S2 for value ($1,300 vs $1,600).
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 | Eufy Omni S2 |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Cleaning 30% | 80 measured 89% of sand from carpet, 88% of pet hair, no hair tangled | 75 measured 87% of sand from carpet, 88.5% of pet hair, no hair tangled |
| Value 25% | 7 $1,600 | 20 $1,300 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup |
| Navigation 15% | 100 LiDAR + camera | 80 Camera + 3D light |
| Mopping 10% | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | 90 Roller, lifts 10.5 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). |
Eufy Omni S2
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 87% | 88.5% | 0 | 1,088 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 | Eufy Omni S2 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 36,000 Pa | 30,000 Pa |
| Main brush | DuoDivide anti-tangle brush | DuoSpiral anti-tangle brushes |
| Dustbin | 259 mL | 300 mL |
| Extending side brush | Yes | Yes |
| Mopping | ||
| Mop | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | Roller, lifts 10.5 mm, extends to edges |
| Mop lift | 15 mm | 10.5 mm |
| Leaves mop at dock | Yes | No |
| Extending mop | Yes | Yes |
| Water tank | 65 mL | 120 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | - | 2.5 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | Yes | Yes |
| Clean water tank | - | 3 L |
| Navigation & app | ||
| Navigation | LiDAR + camera | Camera + 3D light |
| Obstacle avoidance | 3D ToF and RGB camera, recognises 300+ object types | RGB camera + LED + 3D TOF, recognises 200+ obstacle types and objects over 1 cm |
| Climbs thresholds | 88 mm | 42 mm |
| Matter | Yes | Yes |
| Voice assistants | Alexa, Google Assistant, Siri Shortcuts | Alexa, Google Assistant, Siri |
| Build | ||
| Height | 3.1 in (79.8 mm) | 3.9 in (98 mm) |
| Retracting LiDAR | No | No |
| Battery | 6,400 mAh | 4,600 mAh |
| Run time | Up to 3 h 20 min | Up to 4 h 20 min |
| Weight | - | 11.5 lb (5.2 kg) |
| Warranty | 1 year | 1 year |
| Released | 2026-03 | 2026-01 |