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- S1 Pro vs Flow
eufy S1 Pro vs Narwal Flow
What S1 Pro does better (2) and where Flow wins (4) — every spec side by side.
Dimensions
Size comparison
S1 ProFlow
| S1 Pro | Flow | Difference | |
|---|---|---|---|
| Height | 96 mm | 95 mm | +1 mm |
| Width / diameter | 347 mm | 364 mm | −17 mm |
| Length | 347 mm | 364 mm | −17 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is S1 Pro better than Flow?
- Runtime216 min vs 190 min+14%
- Noise level60 dB vs 71 dB+18%
Why is Flow better than S1 Pro?
- Suction power8,000 Pa vs 22,000 Pa2.8×
- Threshold climbing20 mm vs 40 mm2×
- Battery capacity5,200 mAh vs 6,400 mAh+23%
- Charging time240 min vs 180 min+33%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 8,000 Pa | 22,000 Pa |
| Dustbin (robot) | 250 ml | — |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 2 | 2 |
| Carpet detection | Yes | Yes |
| Noise level | 60 dB | 71 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), dToF laser, Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | AI camera | AI camera |
| Threshold climbing | 20 mm | 40 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Roller mop | Roller mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 12 mm | 12 mm |
| Extending mop (edges) | — | Yes |
| Water tank (robot) | 240 ml | — |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 2.5 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | — | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 3 l | — |
| Dirty water tank (dock) | 2 l | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 6,400 mAh |
| Runtime | 216 min | 190 min |
| Charging time | 240 min | 180 min |
| Size & weight | ||
| Width / diameter | 347 mm | 364 mm |
| Length | 347 mm | 364 mm |
| Height | 96 mm | 95 mm |
| Weight | — | 5 kg |
| Shape | Round | Round |
| Colours | Black | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
| Live camera view / video call | — | Yes |
