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- Roomba Combo j7+ vs Eva
iRobot Roomba Combo j7+ vs Roidmi Eva
What Roomba Combo j7+ does better (3) and where Eva wins (4) — every spec side by side.
vs
4.8Navigation5.0
2.3Mopping8.9
4.1Battery5.2
Dimensions
Size comparison
Roomba Combo j7+Eva
| Roomba Combo j7+ | Eva | Difference | |
|---|---|---|---|
| Height | 87 mm | 106 mm | −19 mm |
| Width / diameter | 338 mm | 330 mm | +8 mm |
| Length | 338 mm | 330 mm | +8 mm |
| Weight | 3.4 kg | 4.2 kg | −0.8 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba Combo j7+ better than Eva?
- Obstacle avoidanceAI camera vs Basic sensors (infrared / bumper)
- Charging time90 min vs 240 min2.7×
- Height87 mm vs 106 mm+22%
Why is Eva better than Roomba Combo j7+?
- NavigationCamera (vSLAM) vs Laser (LiDAR)
- Mop typeMop pad vs Rotating mop pads
- Runtime75 min vs 120 min+60%
- Base stationAuto-empty dock vs All-in-one dock (empty + wash)
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 3,200 Pa |
| Dustbin (robot) | — | 220 ml |
| Main brush | Dual main brushes | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | — | Yes |
| Dirt detection | Yes | — |
| HEPA filter | — | Yes |
| Noise level | — | 60 dB |
| Navigation & obstacles | ||
| Navigation | Camera (vSLAM) | Laser (LiDAR) |
| Navigation sensors | vSLAM camera, Wall sensor, Cliff sensors | LiDAR laser (LDS), Wall sensor |
| Obstacle avoidance | AI camera | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | — |
| Mopping | ||
| Mop type | Mop pad | Rotating mop pads |
| Base station | ||
| Base station | Auto-empty dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | — | 3 l |
| Mop washing in the dock | — | Yes |
| Automatic water refill | — | Yes |
| Clean water tank (dock) | — | 4 l |
| Dirty water tank (dock) | — | 4 l |
| Battery & runtime | ||
| Battery capacity | — | 5,200 mAh |
| Runtime | 75 min | 120 min |
| Charging time | 90 min | 240 min |
| Cleaning area per charge | — | 180 m² |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 338 mm | 330 mm |
| Length | 338 mm | 330 mm |
| Height | 87 mm | 106 mm |
| Weight | 3.4 kg | 4.2 kg |
| Shape | Round | Round |
| Colours | Black, Silver, Grey | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
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