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 $379.96$379.96
The Dreame D30 Ultra CE is the better robot vacuum overall, rated 4.5 to 4.1. The Dreame D30 Ultra CE leads on navigation.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
iRobot Roomba Plus 415 Combo
A low-profile entry to iRobot’s self-washing mop docks for hard-floor homes; the Plus 515 adds hot-water washing for a little more.
Amazon $379$379
Which should you buy?
- Choose the Dreame D30 Ultra CE for navigation (LiDAR + 3D light vs LiDAR).
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 | iRobot Roomba Plus 415 Combo |
|---|---|---|
| Overall rating | 4.5/5 | 4.1/5 |
| Cleaning 30% | 73 not yet tested; estimated from 13 tested Dreame robots and the median of the 80 tested robots | 48 not yet tested; estimated from 3 tested iRobot robots and the median of the 80 tested robots |
| Value 25% | 95 $380 | 95 $379 |
| Dock 20% | 100 Self-empties the bin, washes the mop | 100 Self-empties the bin, washes the mop, hot-air mop drying |
| Navigation 15% | 85 LiDAR + 3D light | 65 LiDAR |
| Mopping 10% | 76 Dual spinning pads, lifts 10.5 mm, extends to edges | 76 Dual spinning pads, lifts 10 mm, extends to edges |
Specifications
| Dreame D30 Ultra CE | iRobot Roomba Plus 415 Combo | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 25,000 Pa | - |
| Main brush | Rubber brush (TriCut brush sold separately) | tangle-free rubber brushes |
| Dustbin | 300 mL | - |
| Extending side brush | - | Yes |
| Mopping | ||
| Mop | Dual spinning pads, lifts 10.5 mm, extends to edges | Dual spinning pads, lifts 10 mm, extends to edges |
| Mop lift | 10.5 mm | 10 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 | - |
| Washes mop | Yes | Yes |
| Hot-air drying | - | Yes |
| Clean water tank | 4.5 L | - |
| Navigation & app | ||
| Navigation | LiDAR + 3D light | LiDAR |
| Obstacle avoidance | Line laser (3DAdapt) | Object sensing (sensor type not given) |
| Climbs thresholds | 20 mm | - |
| Voice assistants | Alexa, Siri, Google Assistant | - |
| Build | ||
| Height | 3.8 in (97 mm) | 3.3 in (84 mm) |
| Retracting LiDAR | No | - |
| Battery | 5,200 mAh | 5,200 mAh |
| Run time | Up to 3 h 50 min | - |
| Weight | 8.4 lb (3.8 kg) | 6.4 lb (2.9 kg) |
| Warranty | 3 years | - |
| Released | 2026-05 | 2026-07 |