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- T1 vs E4
Lenovo T1 vs Roborock E4
What T1 does better (3) and where E4 wins (3) — every spec side by side.
Why is T1 better than E4?
- NavigationLaser (LiDAR) vs Camera (vSLAM)
- Runtime150 min vs 120 min+25%
- Charging time300 min vs 360 min+20%
Why is E4 better than T1?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Water tank (robot)110 ml vs 180 ml+64%
- Dustbin (robot)400 ml vs 640 ml+60%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 2,700 Pa | — |
| Dustbin (robot) | 400 ml | 640 ml |
| Main brush | Single main brush | Single main brush |
| Side brushes | 2 | 1 |
| HEPA filter | Yes | Yes |
| Noise level | 70 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Camera (vSLAM) |
| Navigation sensors | LiDAR laser (LDS) | vSLAM camera |
| Obstacle avoidance | Basic sensors (infrared / bumper) | AI camera |
| Threshold climbing | 20 mm | 20 mm |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Water tank (robot) | 110 ml | 180 ml |
| Base station | ||
| Base station | Charging dock | Charging dock |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | — |
| Runtime | 150 min | 120 min |
| Charging time | 300 min | 360 min |
| Size & weight | ||
| Width / diameter | 350 mm | — |
| Length | 350 mm | — |
| Height | 98 mm | — |
| Weight | 5.7 kg | 3 kg |
| Shape | Round | — |
| Colours | White, Gold | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant |
