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- Roomba 981 vs S7+
iRobot Roomba 981 vs Roborock S7+
What Roomba 981 does better (3) and where S7+ wins (2) — every spec side by side.
vs
9.3Cleaning power8.1
4.9Base station9.1
8.3Battery8.8
Dimensions
Size comparison
Roomba 981S7+
| Roomba 981 | S7+ | Difference | |
|---|---|---|---|
| Height | 92 mm | 96 mm | −4 mm |
| Width / diameter | 351 mm | 353 mm | −2 mm |
| Length | 351 mm | 353 mm | −2 mm |
| Weight | 4 kg | 4.7 kg | −0.7 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is Roomba 981 better than S7+?
- Height92 mm vs 96 mm+4%
- Charging time180 min vs 300 min+67%
- Dustbin (robot)600 ml vs 450 ml+33%
Why is S7+ better than Roomba 981?
- Runtime120 min vs 180 min+50%
- Base stationCharging dock vs Auto-empty dock
Specifications
Side by side
| Suction & cleaning | ||
| Dustbin (robot) | 600 ml | 450 ml |
| Side brushes | — | 1 |
| HEPA filter | — | Yes |
| Noise level | — | 60 dB |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | — | LiDAR laser (LDS), 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 | 180 min |
| Charging time | 180 min | 300 min |
| Recharge & resume | — | Yes |
| Size & weight | ||
| Width / diameter | 351 mm | 353 mm |
| Length | 351 mm | 353 mm |
| Height | 92 mm | 96 mm |
| Weight | 4 kg | 4.7 kg |
| Shape | Round | Round |
| Colours | Black | — |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
| Remote control | — | Yes |
