Dreame D30 Ultra CE
A lower-cost version of the D30 Ultra for hard-floor homes that want a washing dock on a budget.
Amazon $399.97$399.97
The Dreame D30 Ultra CE is the better robot vacuum overall, rated 4.5 to 4.4.
Dreame L40s Ultra CE
A cheaper L40s with a full self-cleaning dock, for homes that want hands-off mopping on a budget and can live without hot-water washing.
Amazon $399.49$399.49
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dreame D30 Ultra CE | Dreame L40s Ultra CE |
|---|---|---|
| Overall rating | 4.5/5 | 4.4/5 |
| Cleaning 30% | 73 not yet tested; estimated from 12 tested Dreame robots and the median of the 70 tested robots | 73 not yet tested; estimated from 12 tested Dreame robots and the median of the 70 tested robots |
| Value 25% | 92 $400 | 92 $399 |
| Dock 20% | 100 Self-empties the bin, washes the mop | 83 Self-empties the bin, washes the mop, hot-air mop drying |
| Navigation 15% | 85 LiDAR + 3D light | 85 LiDAR + 3D light |
| Mopping 10% | 76 Dual spinning pads, lifts 10.5 mm, extends to edges | 76 Dual spinning pads, lifts 10.5 mm, extends to edges |
Specifications
| Dreame D30 Ultra CE | Dreame L40s Ultra CE | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 25,000 Pa | 13,000 Pa |
| Main brush | Rubber brush (TriCut brush sold separately) | TriCut brush |
| Dustbin | 300 mL | 320 mL |
| Extending side brush | - | No |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10.5 mm, extends to edges | Dual spinning pads, lifts 10.5 mm, extends to edges |
| Mop lift | 10.5 mm | 10.5 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 3.2 L | 3.2 L |
| Washes mop | Yes | Yes |
| Hot-water wash | - | No |
| Hot-air drying | - | Yes |
| Detergent dosing | - | No |
| Clean water tank | 4.5 L | 4.5 L |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR + 3D light |
| Obstacle avoidance | Line laser (3DAdapt) | Single-laser 3D structured light |
| Climbs thresholds | 20 mm | 20 mm |
| Voice assistants | Alexa, Siri, Google Assistant | Alexa, Siri, Google Assistant |
| Build | ||
| Height | 3.8 in (97 mm) | 4.1 in (104 mm) |
| Retracting LiDAR | No | No |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 3 h 50 min | Up to 4 h 20 min |
| Weight | 8.4 lb (3.8 kg) | 8.6 lb (3.9 kg) |
| Warranty | 3 years | 3 years |
| Released | 2026-05 | 2025-08 |