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- Roomba j7+ vs Roomba s9+
iRobot Roomba j7+ vs iRobot Roomba s9+
What Roomba j7+ does better (3) and where Roomba s9+ wins (3) — every spec side by side.
vs
7.7Cleaning power7.2
7.8Navigation5.9
9.1Base station9.1
3.9Battery8.5
Dimensions
Size comparison
Roomba j7+Roomba s9+
| Roomba j7+ | Roomba s9+ | Difference | |
|---|---|---|---|
| Height | 87 mm | 89 mm | −2 mm |
| Width / diameter | 338 mm | 312 mm | +26 mm |
| Length | 338 mm | 312 mm | +26 mm |
| Weight | 3.4 kg | 4 kg | −0.6 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba j7+ better than Roomba s9+?
- Obstacle avoidanceAI camera vs Basic sensors (infrared / bumper)
- Height87 mm vs 89 mm+2%
- Noise level60 dB vs 65 dB+8%
Why is Roomba s9+ better than Roomba j7+?
- Runtime75 min vs 120 min+60%
- Charging time90 min vs 60 min+50%
- Dustbin (robot)400 ml vs 500 ml+25%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 400 ml | 500 ml |
| Main brush | Dual main brushes | — |
| Side brushes | 1 | 1 |
| Dirt detection | Yes | Yes |
| Noise level | 60 dB | 65 dB |
| Navigation & obstacles | ||
| Navigation | Camera (vSLAM) | — |
| Navigation sensors | vSLAM camera, Wall sensor, Cliff sensors | Cliff sensors |
| Obstacle avoidance | AI camera | Basic sensors (infrared / bumper) |
| Threshold climbing | — | 20 mm |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | Yes | Yes |
| Base station | ||
| Base station | Auto-empty dock | Auto-empty dock |
| Auto-empty dust station | Yes | Yes |
| Mop washing in the dock | Yes | — |
| Battery & runtime | ||
| Runtime | 75 min | 120 min |
| Charging time | 90 min | 60 min |
| Recharge & resume | — | Yes |
| Size & weight | ||
| Width / diameter | 338 mm | 312 mm |
| Length | 338 mm | 312 mm |
| Height | 87 mm | 89 mm |
| Weight | 3.4 kg | 4 kg |
| Shape | Round | — |
| Colours | Black, Silver, Grey | — |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
| Remote control | — | Yes |
