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- Roomba 981 vs Roomba s9+
iRobot Roomba 981 vs iRobot Roomba s9+
What Roomba 981 does better (1) and where Roomba s9+ wins (3) — every spec side by side.
vs
9.3Cleaning power7.1
4.9Base station9.1
8.3Battery8.1
Dimensions
Size comparison
Roomba 981Roomba s9+
| Roomba 981 | Roomba s9+ | Difference | |
|---|---|---|---|
| Height | 92 mm | 89 mm | +3 mm |
| Width / diameter | 351 mm | 312 mm | +39 mm |
| Length | 351 mm | 312 mm | +39 mm |
| Weight | 4 kg | 4 kg | = |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba 981 better than Roomba s9+?
- Dustbin (robot)600 ml vs 500 ml+20%
Why is Roomba s9+ better than Roomba 981?
- Base stationCharging dock vs Auto-empty dock
- Charging time180 min vs 60 min3×
- Height92 mm vs 89 mm+3%
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 600 ml | 500 ml |
| Side brushes | — | 1 |
| Dirt detection | — | Yes |
| Noise level | — | 65 dB |
| Navigation & obstacles | ||
| Navigation sensors | — | Cliff sensors |
| Obstacle avoidance | — | Basic sensors (infrared / bumper) |
| Threshold climbing | 20 mm | 20 mm |
| No-go zones / virtual walls | Yes | — |
| Room mapping & room selection | — | Yes |
| Base station | ||
| Base station | Charging dock | Auto-empty dock |
| Auto-empty dust station | — | Yes |
| Battery & runtime | ||
| Runtime | 120 min | 120 min |
| Charging time | 180 min | 60 min |
| Recharge & resume | — | Yes |
| Size & weight | ||
| Width / diameter | 351 mm | 312 mm |
| Length | 351 mm | 312 mm |
| Height | 92 mm | 89 mm |
| Weight | 4 kg | 4 kg |
| Shape | Round | — |
| Colours | Black | — |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
| Remote control | — | Yes |
