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- Roomba Combo j9+ vs Roomba j7 j7156
iRobot Roomba Combo j9+ vs iRobot Roomba j7 j7156
What Roomba Combo j9+ does better (2) and where Roomba j7 j7156 wins (1) — every spec side by side.
vs
5.3Base station3.5
Why is Roomba Combo j9+ better than Roomba j7 j7156?
- Base stationAuto-empty dock vs Charging dock
- Charging time180 min vs 360 min2×
Why is Roomba j7 j7156 better than Roomba Combo j9+?
- Dustbin (robot)313 ml vs 400 ml+28%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 313 ml | 400 ml |
| Main brush | Dual main brushes | — |
| Side brushes | 1 | — |
| Carpet detection | Yes | — |
| Dirt detection | Yes | — |
| Navigation & obstacles | ||
| Navigation sensors | Cliff sensors | — |
| Obstacle avoidance | Basic sensors (infrared / bumper) | — |
| Room mapping & room selection | Yes | — |
| Mopping | ||
| Mop type | Mop pad | — |
| Mop lifting on carpets | Yes | — |
| Water tank (robot) | 210 ml | — |
| Base station | ||
| Base station | Auto-empty dock | Charging dock |
| Auto-empty dust station | Yes | — |
| Automatic water refill | Yes | — |
| Clean water tank (dock) | 3 l | — |
| Battery & runtime | ||
| Battery capacity | 4,500 mAh | — |
| Charging time | 180 min | 360 min |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 348 mm | — |
| Length | 348 mm | — |
| Height | 87 mm | — |
| Weight | 4.1 kg | — |
| Shape | Round | Round |
| Colours | Black, Gold | Grey |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant |
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