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- D20 Ultra vs Roomba Plus 505 Combo
Dreame D20 Ultra vs iRobot Roomba Plus 505 Combo
What D20 Ultra does better (5) and where Roomba Plus 505 Combo wins (0) — every spec side by side.
vs
7.2Cleaning power5.0
5.8Navigation5.8
8.1Mopping7.9
9.4Base station6.9
8.4Battery6.9
Dimensions
Size comparison
D20 UltraRoomba Plus 505 Combo
| D20 Ultra | Roomba Plus 505 Combo | Difference | |
|---|---|---|---|
| Height | 104 mm | 106 mm | −2 mm |
| Width / diameter | 350 mm | 357 mm | −7 mm |
| Length | 350 mm | 357 mm | −7 mm |
| Weight | 3.9 kg | 4.3 kg | −0.4 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is D20 Ultra better than Roomba Plus 505 Combo?
- Suction power13,000 Pa vs 7,000 Pa+86%
- Runtime230 min vs 180 min+28%
- Dust bag (dock)3.2 l vs 1.7 l+88%
- Clean water tank (dock)4.5 l vs 3 l+50%
- Charging time210 min vs 240 min+14%
Why is Roomba Plus 505 Combo better than D20 Ultra?
Roomba Plus 505 Combo has no measurable advantages in this pair.
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 7,000 Pa |
| Dustbin (robot) | 320 ml | — |
| Main brush | Single main brush | Single main brush |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | Yes |
| Dirt detection | — | Yes |
| HEPA filter | Yes | — |
| Noise level | 65 dB | — |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS), Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | Basic sensors (infrared / bumper) |
| Threshold climbing | 20 mm | 20 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Rotating mop pads | Rotating mop pads |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 10.5 mm | — |
| Extending mop (edges) | — | Yes |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 3.2 l | 1.7 l |
| Mop washing in the dock | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 4.5 l | 3 l |
| Dirty water tank (dock) | 4 l | 2.5 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | — |
| Runtime | 230 min | 180 min |
| Charging time | 210 min | 240 min |
| Recharge & resume | Yes | Yes |
| Size & weight | ||
| Width / diameter | 350 mm | 357 mm |
| Length | 350 mm | 357 mm |
| Height | 104 mm | 106 mm |
| Weight | 3.9 kg | 4.3 kg |
| Shape | Round | Round |
| Colours | White | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
| Remote control | — | Yes |
