Roborock Saros 20 vs Narwal Flow: which should you buy?
The Roborock Saros 20 and Narwal Flow are two of the more interesting upper-mid picks going around, each taking a different route to the same goal: a floor you never think about. One leans on Roborock navigation pedigree, the other on Narwal mopping smarts. The table below lays out where your money actually goes.
Quick verdict
At today's prices, the Roborock Saros 20 is the better value on price: it is at its usual price, while the Narwal Flow is 11% above its usual price. If the Narwal Flow drops back to its usual ~$1,799, it becomes the better value on price.
Roborock Saros 20 leads on stronger suction for carpet and pet hair, clearing higher thresholds and thick rugs. Narwal Flow leads on longer runtime for larger homes, HEPA filtration for allergy households.
Specifications, side by side
| Specification | Roborock Saros 20 | Narwal Flow |
|---|---|---|
| Lowest price | $1,999 | $1,999 |
| Value vs its usual price | at its usual price | 11% above its usual price |
| Suction | 36,000 Pa | 22,000 Pa |
| Battery runtime | 180 min | 190 min |
| Navigation | LiDAR | LiDAR |
| Obstacle avoidance | AI camera | AI camera |
| Mop system | Dual spinning | Rotating roller |
| Self-emptying base | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Anti-tangle brush (pet hair) | Yes | Yes |
| HEPA filter (allergens) | No | Yes |
| Max threshold (climb) | 88 mm | 40 mm |
| Dustbin capacity | - | 0.30 L |
| Smart home | Alexa, Google Assistant, Siri | Alexa, Google Assistant, Siri |
| Noise level | - | 53 dB |
| Warranty | 2 years | 2 years |
| Dust Rocket Autonomy Score | 9 / 10 | 9 / 10 |
| How the Dust Rocket Autonomy Score is calculated → | ||
The two use different mop designs rather than one being clearly better or worse - check the mop row above for each machine's type.
Value on price compares each machine's current price with its own 90-day typical price, so it reflects how good a deal it is right now rather than which is the better product for you. These figures come from the specifications and prices we track on our own product pages, not independent lab tests, and update live.