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- Roomba Combo 2 Essential vs SRV 9020BK
iRobot Roomba Combo 2 Essential vs Sencor SRV 9020BK
What Roomba Combo 2 Essential does better (5) and where SRV 9020BK wins (2) — every spec side by side.
vs
2.9Navigation2.8
3.1Mopping3.9
3.9Battery3.5
Dimensions
Size comparison
Roomba Combo 2 EssentialSRV 9020BK
| Roomba Combo 2 Essential | SRV 9020BK | Difference | |
|---|---|---|---|
| Height | 85 mm | 97 mm | −12 mm |
| Width / diameter | 335 mm | 320 mm | +15 mm |
| Length | 335 mm | 320 mm | +15 mm |
| Weight | 2.8 kg | 2.8 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Combo 2 Essential better than SRV 9020BK?
- Base stationAuto-empty dock vs Charging dock
- Height85 mm vs 97 mm+14%
- Threshold climbing18 mm vs 16 mm+12%
- Charging time240 min vs 300 min+25%
- Dustbin (robot)400 ml vs 340 ml+18%
Why is SRV 9020BK better than Roomba Combo 2 Essential?
- Runtime120 min vs 130 min+8%
- Water tank (robot)200 ml vs 250 ml+25%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 3,000 Pa |
| Dustbin (robot) | 400 ml | 340 ml |
| Main brush | Single main brush | — |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | — |
| HEPA filter | — | Yes |
| Noise level | 60 dB | 60 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Gyroscope, Cliff sensors | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | 18 mm | 16 mm |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Mop pad | Mop pad |
| Water tank (robot) | 200 ml | 250 ml |
| Base station | ||
| Base station | Auto-empty dock | Charging dock |
| Auto-empty dust station | Yes | — |
| Battery & runtime | ||
| Battery capacity | 2,600 mAh | 2,600 mAh |
| Runtime | 120 min | 130 min |
| Charging time | 240 min | 300 min |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 335 mm | 320 mm |
| Length | 335 mm | 320 mm |
| Height | 85 mm | 97 mm |
| Weight | 2.8 kg | 2.8 kg |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | — |
| Remote control | — | Yes |
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