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- D20 Ultra vs QV 35S
Dreame D20 Ultra vs Roborock QV 35S
What D20 Ultra does better (3) and where QV 35S wins (2) — every spec side by side.
Dimensions
Size comparison
D20 UltraQV 35S
| D20 Ultra | QV 35S | Difference | |
|---|---|---|---|
| Height | 104 mm | 96 mm | +8 mm |
| Width / diameter | 350 mm | 353 mm | −3 mm |
| Length | 350 mm | 353 mm | −3 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is D20 Ultra better than QV 35S?
- Suction power13,000 Pa vs 10,000 Pa+30%
- Runtime230 min vs 180 min+28%
- Mop lift height10.5 mm vs 10 mm+5%
Why is QV 35S better than D20 Ultra?
- Height104 mm vs 96 mm+8%
- Dustbin (robot)320 ml vs 330 ml+3%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 10,000 Pa |
| Dustbin (robot) | 320 ml | 330 ml |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 1 | 1 |
| Carpet detection | Yes | Yes |
| HEPA filter | Yes | — |
| Noise level | 65 dB | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors, Ultrasonic sensor | LiDAR laser (LDS), Ultrasonic sensor |
| 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 | 10 mm |
| Water tank (robot) | — | 80 ml |
| 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 | — |
| Mop washing in the dock | Yes | Yes |
| Hot-air mop drying | Yes | — |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 4.5 l | — |
| Dirty water tank (dock) | 4 l | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 230 min | 180 min |
| Charging time | 210 min | — |
| Cleaning area per charge | — | 330 m² |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 350 mm | 353 mm |
| Length | 350 mm | 353 mm |
| Height | 104 mm | 96 mm |
| Weight | 3.9 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 |
