Roborock Saros 20 vs Narwal Flow 2
Two of the robot vacuum & mop combos (all-in-one docks) in our best robot vacuum and mop combos with self-cleaning docks comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: The highest-suction Roborock, with a 212 °F mop wash
Check price at AmazonBest for: A track mop that rinses itself with warm water as it cleans
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Roborock Saros 20 | Narwal Flow 2 | Weight |
|---|---|---|---|
| Max suctionPeak suction the maker quotes, in pascals. It's a lab figure, but within one brand a bigger number does pull more grit out of carpet. | 36000 Pa | 31000 Pa | 35% |
| Camera-based obstacle recognitionYes only when the maker says the robot carries an RGB/AI camera. Structured light alone detects shapes. A camera is what tells a sock from a cable or pet mess. | Yes | Yes | 20% |
| Robot heightLower robots get under more sofas and beds. We use the robot's listed height (sensor retracted where it retracts). | 3.14 in | Not listed | 15% |
| Hot-water mop washingYes when the dock washes the mop pads with heated water (temperature in the spec table). Hot water shifts grease that a cold rinse leaves behind. | Yes | Yes | 15% |
| Battery capacityBigger packs cover more floor before the robot goes back to recharge mid-job. | 6400 mAh | 7000 mAh | 15% |
| Max suction | 36,000 Pa | 31,000 Pa | info |
| Battery | 6,400 mAh | 7,000 mAh | info |
| Robot dimensions | 13.78 × 13.90 × 3.14 in | Not listed | info |
| Mop washing | Up to 212 °F hot water | Not listed | info |
| Obstacle recognition | 3D sensors + RGB camera | Dual 1080p AI cameras | info |
| Thresholds | Double-layer thresholds up to 1.77 in + 1.69 in (AdaptiLift Chassis 3.0) | 1.57 in | info |
| Low-clearance navigation | Down to 3.13 in | Not listed | info |
| Mop | Not listed | FlowWash rolling track mop, 140 °F water on the go | info |
| Dock mop wash | Not listed | 212 °F hot water | info |
| Warranty | Not listed | 1 year (listed on Narwal's US store page) | info |
| SweepPick score | 9.5/10 | 9.3/10 | 100% |
Where each one comes out ahead
Roborock Saros 20
Better published figure on: Max suction.
What we like
- Most suction in this guide
- Hottest mop wash (212 °F)
- Climbs two-step thresholds
Watch out for
- Roborock's most expensive tier
Narwal Flow 2
Better published figure on: Battery capacity.
What we like
- Largest battery here
- Track mop keeps rinsing mid-clean
- Dual cameras
Watch out for
- Narwal doesn't list the robot's height
Verdict
Roborock has 5,000 Pa more and a 3.14 in body. Narwal's track mop rinses itself with 140 °F water while it cleans, and it has the bigger battery.
- Roborock Saros 20: Roborock: Saros 20
- Narwal Flow 2: Narwal: Flow 2