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- D20 Ultra vs J15 Pro Ultra
Dreame D20 Ultra vs Eureka J15 Pro Ultra
What D20 Ultra does better (5) and where J15 Pro Ultra wins (2) — every spec side by side.
vs
7.2Cleaning power8.1
5.8Navigation8.3
8.1Mopping7.9
9.4Base station8.0
8.4Battery5.0
Dimensions
Size comparison
D20 UltraJ15 Pro Ultra
| D20 Ultra | J15 Pro Ultra | Difference | |
|---|---|---|---|
| Height | 104 mm | 110 mm | −6 mm |
| Width / diameter | 350 mm | 355 mm | −5 mm |
| Length | 350 mm | 355 mm | −5 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is D20 Ultra better than J15 Pro Ultra?
- Runtime230 min vs 140 min+64%
- Height104 mm vs 110 mm+6%
- Charging time210 min vs 360 min+71%
- Clean water tank (dock)4.5 l vs 4 l+12%
- Dust bag (dock)3.2 l vs 3 l+7%
Why is J15 Pro Ultra better than D20 Ultra?
- Obstacle avoidanceBasic sensors (infrared / bumper) vs AI camera
- Suction power13,000 Pa vs 16,200 Pa+25%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 13,000 Pa | 16,200 Pa |
| Dustbin (robot) | 320 ml | — |
| Main brush | Single main brush | Single main brush |
| Anti-tangle brush | — | Yes |
| 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), Wall sensor, Cliff sensors |
| Obstacle avoidance | Basic sensors (infrared / bumper) | AI camera |
| Threshold climbing | 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 | 3 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | — | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 4.5 l | 4 l |
| Dirty water tank (dock) | 4 l | — |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 5,200 mAh |
| Runtime | 230 min | 140 min |
| Charging time | 210 min | 360 min |
| Recharge & resume | Yes | — |
| Size & weight | ||
| Width / diameter | 350 mm | 355 mm |
| Length | 350 mm | 355 mm |
| Height | 104 mm | 110 mm |
| Weight | 3.9 kg | — |
| Shape | Round | Round |
| Colours | White | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
