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- Roomba Combo j9+ vs Mi Robot Vacuum-Mop 2S
iRobot Roomba Combo j9+ vs Xiaomi Mi Robot Vacuum-Mop 2S
What Roomba Combo j9+ does better (5) and where Mi Robot Vacuum-Mop 2S wins (0) — every spec side by side.
vs
2.6Navigation3.6
5.0Mopping3.2
5.3Base station3.5
5.9Battery2.9
Dimensions
Size comparison
Roomba Combo j9+Mi Robot Vacuum-Mop 2S
| Roomba Combo j9+ | Mi Robot Vacuum-Mop 2S | Difference | |
|---|---|---|---|
| Height | 87 mm | 95 mm | −8 mm |
| Width / diameter | 348 mm | 350 mm | −2 mm |
| Length | 348 mm | 350 mm | −2 mm |
| Weight | 4.1 kg | 3.6 kg | +0.5 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Combo j9+ better than Mi Robot Vacuum-Mop 2S?
- Base stationAuto-empty dock vs Charging dock
- Height87 mm vs 95 mm+9%
- Charging time180 min vs 240 min+33%
- Water tank (robot)210 ml vs 200 ml+5%
- Dustbin (robot)313 ml vs 300 ml+4%
Why is Mi Robot Vacuum-Mop 2S better than Roomba Combo j9+?
Mi Robot Vacuum-Mop 2S has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 2,200 Pa |
| Dustbin (robot) | 313 ml | 300 ml |
| Main brush | Dual main brushes | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | — |
| Dirt detection | Yes | — |
| HEPA filter | — | Yes |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | Cliff sensors | LiDAR laser (LDS) |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | Yes | — |
| Mopping | ||
| Mop type | Mop pad | Mop pad |
| Mop lifting on carpets | Yes | — |
| Water tank (robot) | 210 ml | 200 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 | — |
| Runtime | — | 90 min |
| Charging time | 180 min | 240 min |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 348 mm | 350 mm |
| Length | 348 mm | 350 mm |
| Height | 87 mm | 95 mm |
| Weight | 4.1 kg | 3.6 kg |
| Shape | Round | Round |
| Colours | Black, Gold | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | — |
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