Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Roborock - Saros Z70 | iRobot - Roomba Combo 10 Max |
|---|---|---|
| Water tank | 270 ml | 210 ml |
| Noise | 65 dB | 70 dB |
| Lidar | true | false |
| Suction | 22000 Pa | 0 Pa |
Between the Saros Z70 and Roomba Combo 10 Max, the Saros Z70 comes out ahead in water tank / noise, while the Roomba Combo 10 Max wins on several specs. Overall, the Saros Z70 scores 88 and the Roomba Combo 10 Max scores 59 on our Mars Score.
Which should you buy?
The Saros Z70 is the clear pick on raw spec strength, leading by 29.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Saros Z70 if you care most about water tank / noise. The biggest gaps in its favor are water tank, noise, lidar, among others. The single most decisive one: Water tank — 28.57% more. 270 ml vs 210 ml.
The Roomba Combo 10 Max similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable mopping, battery life, self-empty base, 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 - Saros Z70 or iRobot - Roomba Combo 10 Max?
Roborock - Saros Z70 leads the current Mars Score by 29.0 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 - Saros Z70 if…
Roborock - Saros Z70 has the measurable edge on water tank capacity ml, noise db, has lidar.
Choose iRobot - Roomba Combo 10 Max if…
iRobot - Roomba Combo 10 Max does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
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 - Saros Z70 wins
- ▲Water tank — 28.57% more. 270 ml vs 210 ml.
- ▲Noise — 5.00 dB less. 65 vs 70.
- ▲Has Lidar.
- ▲Suction: 22000 Pa vs 0 Pa.
Why iRobot - Roomba Combo 10 Max wins
- No decisive advantages.
Spec comparison
Cleaning
| Spec | Roborock - Saros Z70 | iRobot - Roomba Combo 10 Max |
|---|---|---|
| Suction | 22000 Palead | 0 Pa |
| Mopping | true | true |
| Water tank | 270 mllead | 210 ml |
| Dustbin | 300 ml | 500 mllead |
| Carpet detection | true | true |
Navigation
| Spec | Roborock - Saros Z70 | iRobot - Roomba Combo 10 Max |
|---|---|---|
| Lidar | truelead | false |
| Camera navigation | true | true |
| AI obstacle avoidance | true | true |
| Max climb | 40 mmlead | 20 mm |
Autonomy
| Spec | Roborock - Saros Z70 | iRobot - Roomba Combo 10 Max |
|---|---|---|
| Battery life | 180 min | 180 min |
| Self-empty base | true | true |
| Self-wash mop | true | true |
| Self-dry mop | true | true |
| Noise | 65 dBlead | 70 dB |
Frequently asked
Which has stronger suction, Saros Z70 or Roomba Combo 10 Max?+
Saros Z70 delivers 22000 Pa vs 0 Pa.
Do Saros Z70 or Roomba Combo 10 Max mop?+
Both can mop.
Which has a self-emptying base, Saros Z70 or Roomba Combo 10 Max?+
Both ship with a self-emptying base.