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- Electrolux RX9-2-4STN vs Roomba j7+
AEG Electrolux RX9-2-4STN vs iRobot Roomba j7+
What Electrolux RX9-2-4STN does better (3) and where Roomba j7+ wins (4) — every spec side by side.
vs
6.4Cleaning power7.7
9.3Navigation7.8
5.0Base station9.1
2.7Battery3.9
Dimensions
Size comparison
Electrolux RX9-2-4STNRoomba j7+
| Electrolux RX9-2-4STN | Roomba j7+ | Difference | |
|---|---|---|---|
| Height | 85 mm | 87 mm | −2 mm |
| Width / diameter | 325 mm | 338 mm | −13 mm |
| Length | 325 mm | 338 mm | −13 mm |
| Weight | 2.5 kg | 3.4 kg | −0.9 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Electrolux RX9-2-4STN better than Roomba j7+?
- NavigationLaser (LiDAR) vs Camera (vSLAM)
- Dustbin (robot)700 ml vs 400 ml+75%
- Height85 mm vs 87 mm+2%
Why is Roomba j7+ better than Electrolux RX9-2-4STN?
- Base stationCharging dock vs Auto-empty dock
- Runtime70 min vs 75 min+7%
- Charging time150 min vs 90 min+67%
- Noise level75 dB vs 60 dB+25%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 700 ml | 400 ml |
| Main brush | Single main brush | Dual main brushes |
| Side brushes | 1 | 1 |
| Dirt detection | — | Yes |
| Noise level | 75 dB | 60 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Camera (vSLAM) |
| Navigation sensors | LiDAR laser (LDS), Cliff sensors | vSLAM camera, Wall sensor, Cliff sensors |
| Obstacle avoidance | AI camera | AI camera |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Base station | ||
| Base station | Charging dock | Auto-empty dock |
| Auto-empty dust station | — | Yes |
| Mop washing in the dock | — | Yes |
| Battery & runtime | ||
| Battery capacity | 2,500 mAh | — |
| Runtime | 70 min | 75 min |
| Charging time | 150 min | 90 min |
| Cleaning area per charge | 100 m² | — |
| Size & weight | ||
| Width / diameter | 325 mm | 338 mm |
| Length | 325 mm | 338 mm |
| Height | 85 mm | 87 mm |
| Weight | 2.5 kg | 3.4 kg |
| Shape | Round | Round |
| Colours | Blue | Black, Silver, Grey |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | — | Amazon Alexa, Google Assistant |
