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- Roomba Max 875 Combo vs Saros 20 Sonic
iRobot Roomba Max 875 Combo vs Roborock Saros 20 Sonic
What Roomba Max 875 Combo does better (1) and where Saros 20 Sonic wins (5) — every spec side by side.
vs
9.6Cleaning power8.9
6.9Navigation9.2
9.5Mopping7.6
8.2Base station7.6
Dimensions
Size comparison
Roomba Max 875 ComboSaros 20 Sonic
| Roomba Max 875 Combo | Saros 20 Sonic | Difference | |
|---|---|---|---|
| Height | 100 mm | 80 mm | +20 mm |
| Width / diameter | 360 mm | 353 mm | +7 mm |
| Length | 360 mm | 353 mm | +7 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Max 875 Combo better than Saros 20 Sonic?
- Mop typeRoller mop vs Vibrating / sonic mop
Why is Saros 20 Sonic better than Roomba Max 875 Combo?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Threshold climbing35 mm vs 88 mm2.5×
- Mop lift height14.5 mm vs 35 mm2.4×
- Suction power35,000 Pa vs 36,000 Pa+3%
- Height100 mm vs 80 mm+25%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 35,000 Pa | 36,000 Pa |
| Dustbin (robot) | — | 228 ml |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | Yes | Yes |
| Side brushes | 1 | 1 |
| Extending side brush | Yes | Yes |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | — |
| Noise level | — | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | LiDAR laser (LDS), Retractable LiDAR, Wall sensor, Cliff sensors |
| Retractable LiDAR | — | Yes |
| Obstacle avoidance | Basic sensors (infrared / bumper) | AI camera |
| Threshold climbing | 35 mm | 88 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Roller mop | Vibrating / sonic mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 14.5 mm | 35 mm |
| Automatic mop removal | — | Yes |
| Extending mop (edges) | Yes | Yes |
| Water tank (robot) | — | 70 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) | — | 2.7 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 4 l | 4 l |
| Dirty water tank (dock) | 3.5 l | 3.5 l |
| Battery & runtime | ||
| Battery capacity | — | 6,400 mAh |
| Runtime | — | 190 min |
| Charging time | — | 150 min |
| Recharge & resume | — | Yes |
| Size & weight | ||
| Width / diameter | 360 mm | 353 mm |
| Length | 360 mm | 353 mm |
| Height | 100 mm | 80 mm |
| Shape | Round | Round |
| Colours | Black | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant, Apple Siri |
| Matter | — | Yes |
| Live camera view / video call | — | Yes |
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