Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Roborock - Qrevo Master | Roborock - Saros Z70 |
|---|---|---|
| Suction | 10000 Pa | 22000 Pa |
| Water tank | 250 ml | 270 ml |
| Noise | 64 dB | 65 dB |
Between the Qrevo Master and Saros Z70, the Qrevo Master comes out ahead in noise, while the Saros Z70 wins on suction / water tank. Overall, the Qrevo Master scores 81.3 and the Saros Z70 scores 88 on our Mars Score.
Which should you buy?
The Saros Z70 edges ahead on the Mars Score (81.3 vs 88), but the 6.7-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Qrevo Master if you care most about noise. The biggest gaps in its favor are noise. The single most decisive one: Noise — 1.00 dB less. 64 vs 65.
Pick the Saros Z70 if you care most about suction / water tank. Its strongest claims are suction, water tank. The single most decisive one: Suction — 120.00% more. 22000 Pa vs 10000 Pa.
Both ship with comparable mopping, lidar, battery life, so those specs do not separate the two — focus on the differences below.
Bottom line: the Saros Z70 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Roborock - Qrevo Master or Roborock - Saros Z70?
Roborock - Saros Z70 leads the current Mars Score by 6.7 points.The more useful decision is the trade-off behind that result: compare suction against the way you will actually use the product.
Choose Roborock - Qrevo Master if…
Roborock - Qrevo Master has the measurable edge on noise db.
Choose Roborock - Saros Z70 if…
Roborock - Saros Z70 has the measurable edge on suction pa, water tank capacity ml.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Roborock - Qrevo Master wins
- ▲Noise — 1.00 dB less. 64 vs 65.
Why Roborock - Saros Z70 wins
- ▲Suction — 120.00% more. 22000 Pa vs 10000 Pa.
- ▲Water tank — 8.00% more. 270 ml vs 250 ml.
Spec comparison
Cleaning
| Spec | Roborock - Qrevo Master | Roborock - Saros Z70 |
|---|---|---|
| Suction | 10000 Pa | 22000 Palead |
| Mopping | true | true |
| Water tank | 250 ml | 270 mllead |
| Dustbin | 300 ml | 300 ml |
| Carpet detection | true | true |
Navigation
| Spec | Roborock - Qrevo Master | Roborock - Saros Z70 |
|---|---|---|
| Lidar | true | true |
| Camera navigation | true | true |
| AI obstacle avoidance | true | true |
| Max climb | 25 mm | 40 mmlead |
Autonomy
| Spec | Roborock - Qrevo Master | Roborock - Saros Z70 |
|---|---|---|
| Battery life | 180 min | 180 min |
| Self-empty base | true | true |
| Self-wash mop | true | true |
| Self-dry mop | true | true |
| Noise | 64 dBlead | 65 dB |
Frequently asked
Which has stronger suction, Qrevo Master or Saros Z70?+
Saros Z70 delivers 22000 Pa vs 10000 Pa.
Do Qrevo Master or Saros Z70 mop?+
Both can mop.
Which has a self-emptying base, Qrevo Master or Saros Z70?+
Both ship with a self-emptying base.