Dreame has been progressively releasing an advanced lineup of state-of-the-art robot vacuum mop combos, with the newest and most powerful one being the Dreame X40 Ultra robot vacuum.
Dreame’s lineup has more than one star on our Best Robot Vacuum list, but comparing their differences can be challenging. This article will break down the main features of the new Dreame lineup, including the Dreame X40 Ultra, Dreame X30 Ultra, and Dreame L20 Ultra. We’ll explore their differences and help you decide which model best fits your needs.
The Dreame Lineup: The Basics
Dreame X40 Ultra
The newest flagship model from Dreame, the X40 Ultra was released in April of 2024 and is the most advanced and powerful model to date. It is packed full of state-of-the-art features, making it a true premium-level robotic vacuum. See our full review for an in-depth look at this model.
The Dreame X40 Ultra Robot Vacuum offers powerful 12,000 Pa suction, excelling in carpet deep cleaning and debris pickup on hard floors and carpets. It features a swinging side brush and an automatic extending mop pad for enhanced edge cleaning. The advanced mopping system uses spinning pads to tackle tough stains like dried coffee and grape juice, with mop pads that lift to avoid wetting carpets and can detach when necessary. Its innovative base station empties the dustbin into a 3.2-liter disposable bag, washes and dries mop pads with hot water and air, refills the mop tank, and cleans the bin using a gear-driven system. Advanced obstacle avoidance utilizes cameras, structured light, lasers, and LED lights, achieving near-perfect avoidance scores. With efficient navigation and a user-friendly app, it cleans large areas without interruption. See additional info
Price as of May 6, 2025
Auto Empty Station: Self Empties Debris | Washes Mop Pad | Washes Mop Pad with Hot Water | Dries Mop Pad | Dries Mops Pad with Heated Air| Self Cleaning | Dirty Water Sensor
Mopping: Lifts Mop Pads on Carpets | Extending Mop Pad for Hard to Reach Areas | Can Leave Pads At Base while Vacuuming
Hardware: Auto Extending Side Brush for Hard to Reach Areas | 22mm Threshold Crossing
Performance: Carpet Boost Settings
Mapping / Navigation: Multi Level Maps | Virtual Barriers and No Go Zones
Obstacle Avoidance: 120 Objects Recognized
Pet Features: Live Video Monitoring | Pet Checkup or Similar
| Scores | Dreame X40 | Average Robot Vacuum Tested |
|---|---|---|
| Vacuum Wars Overall | 4.41 | 2.84 |
| Features | 4.47 | 3.58 |
| Mopping Performance | 3.65 | 2.68 |
| Obstacle Avoidance | 4.69 | 3.56 |
| Pet | 3.83 | 2.85 |
| Navigation | 3.09 | 3.31 |
| Battery | 2.55 | 2.62 |
| Performance | 4.04 | 3.59 |
| Official Battery Life: 194 Minutes | Navigation Type: Spinning Lidar |
| Official Suction Power: 12000 Pa | Dust Bin Size: 350ml |
| Obstacle Avoidance Type: Single Camera & 3D Structured Light | Objects Recognized: 120 |
| Multi Level Maps: Y | Virtual Barriers: Y |
| Detergent Capacity: Unknown | Disposable Bag: 3.2L |
Dreame X30 Ultra
Released in early 2024, the Dreame X30 Ultra is an advanced robotic vacuum with nearly as many high-tech features as the Dreame X40 Ultra. It’s also a premium-level vacuum, albeit slightly more affordable than the X40. See our full review for an in-depth look at this model.
The Dreame X30 Ultra is a flagship robot vacuum and mop combo that introduces several advanced features over its predecessors. It boasts efficient navigation and obstacle avoidance systems, utilizing a front-mounted camera, 3D structured light, lasers, and an extensive object recognition library to clean effectively, even in the dark. Standout features include hot water washing for mop pads, enhancing cleaning effectiveness, and the new RoboSwing technology, which swings the extendable mop pad in and out of tight spaces for better coverage. The docking station is more compact and features an automatic cleaning mechanism that scrubs its own drip tray, moving closer to complete automation. It also offers flexibility with detergent options and has a larger internal dustbin and battery for extended cleaning sessions. However, despite a higher official suction power, performance tests showed that it underperformed in airflow and carpet deep cleaning compared to the older L20 model. While the X30 Ultra is a highly capable robot vacuum with excellent mopping abilities and advanced features, its raw performance in some areas and higher price point may make the previous L20 Ultra a better value for some users.See additional info
Price as of May 6, 2025
Auto Empty Station: Self Empties Debris | Washes Mop Pad | Washes Mop Pad with Hot Water | Dries Mop Pad | Dries Mops Pad with Heated Air| Self Cleaning | Dirty Water Sensor
Mopping: Lifts Mop Pads on Carpets | Extending Mop Pad for Hard to Reach Areas
Hardware: 22mm Threshold Crossing | Removes Hair from Brush Roll
Performance: Carpet Boost Settings
Mapping / Navigation: Multi Level Maps | Virtual Barriers and No Go Zones
Obstacle Avoidance: 70 Objects Recognized
Pet Features: Live Video Monitoring
| Scores | Dreame X30 | Average Robot Vacuum Tested |
|---|---|---|
| Vacuum Wars Overall | 4.06 | 2.84 |
| Features | 4.43 | 3.58 |
| Mopping Performance | 3.72 | 2.68 |
| Obstacle Avoidance | 4.47 | 3.56 |
| Pet | 3.02 | 2.85 |
| Navigation | 3.61 | 3.31 |
| Battery | 2.83 | 2.62 |
| Performance | 3.38 | 3.59 |
| Official Battery Life: 260 Minutes | Navigation Type: Type: Spinning Lidar |
| Official Suction Power: 8300 Pa | Dust Bin Size: 350ml |
| Obstacle Avoidance Type: Single Camera & 3D Structured Light | Objects Recognized: 70 |
| Multi Level Maps: Y | Virtual Barriers: Y |
| Detergent Capacity: Unknown | Disposable Bag: 3.2L |
Dreame L20 Ultra
The Dreame X20 Ultra is the earliest model from this lineup. Although still a premium-level robot vacuum, it brings a mix of advanced technology and affordability. See our full review for an in-depth look at this model.
The Dreame L20 Ultra is a premium robot vacuum mop combo, our pick for best robot vacuum of 2023. Its floating anti-tangle brush and single side brush excel in debris pickup on hard floors and carpets, handling pet hair without scattering. The standout dual spinning mopping system, with downward pressure, tackles tough stains effectively. MopExtend technology extends one pad to reach edges, while pads lift 10.5 mm or detach at the dock to protect carpets. The automatic base station features a 3.2L dust bag, mop washing, water refilling, warm-air drying, and a removable tray. Advanced navigation using lidar, AI, and 3D sensors ensures efficient mapping, covering 1,600 square feet per charge. Despite a high price and average crevice and deep-cleaning performance, its robust app features and premium functionality make it a top-tier option for high-end cleaning. See additional info
Price as of May 6, 2025
Auto Empty Station: Self Empties Debris | Washes Mop Pad | Dries Mop Pad | Dirty Water Sensor
Mopping: Lifts Mop Pads on Carpets | Extending Mop Pad for Hard to Reach Areas
Hardware: 22mm Threshold Crossing
Performance: Carpet Boost Settings
Mapping / Navigation: Multi Level Maps | Virtual Barriers and No Go Zones
Obstacle Avoidance: 55 Objects Recognized
Pet Features: Live Video Monitoring
| Scores | Dreame L20 | Average Robot Vacuum Tested |
|---|---|---|
| Vacuum Wars Overall | 4.21 | 2.84 |
| Features | 4.29 | 3.58 |
| Mopping Performance | 3.69 | 2.68 |
| Obstacle Avoidance | 4.26 | 3.56 |
| Pet | 3.37 | 2.85 |
| Navigation | 3.48 | 3.31 |
| Battery | 2.63 | 2.62 |
| Performance | 3.75 | 3.59 |
| Official Battery Life: 180 Minutes | Navigation Type: Type: Spinning Lidar |
| Official Suction Power: 7000 Pa | Dust Bin Size: 300ml |
| Obstacle Avoidance Type: 3D Structured light | Objects Recognized: 55 |
| Multi Level Maps: Y | Virtual Barriers: Y |
| Detergent Capacity: 450ml | Disposable Bag: 3.2L |
Features in Common
All three of these Dreame robot vacuums feature powerful suction, long battery lives, advanced detection and cleaning features, and docking stations designed to automate a variety of useful tasks. Here’s a quick overview of the several features which the Dreame X40 Ultra, Dreame X30 Ultra, and Dreame L20 Ultra robot vacuums all share.
- Smart Navigation: Combines LIDAR navigation, RGB camera, and 3D structured light for intelligent obstacle detection and room mapping (including Multi-Level and 3D mapping).
- Multi-Surface Cleaning: Includes auto-mop lifting for keeping carpet dry, exceptional debris pickup (see our Debris Pickup Test), and various cleaning modes (Area select, Area restriction, Auto zoning).
- Large Capacity & Long Battery Life: Features a sizeable dust bin (3.2 liter bag volume) and water tank (80ml for vacuuming, 4.5 liter for mopping dock), with an average maximum battery life of 180 minutes.
- Mop Pad Lifting or Removing: Allows you to mop and vacuum in one run without getting the carpet wet.
- Voice Control: Compatible with SIRI, Alexa, and Google voice control.
Comparing the Models
We identified the following key differences across the lineup:
| Dreame X40 Ultra | Dreame X30 Ultra | Dreame L20 Ultra | |
| Suction | 12,000Pa | 8,300Pa | 7,000Pa |
| Obstacle Avoidance | Yes – 120 Object Types | Yes – 70 Object Types | Yes – 55 Object Types |
| OmniDirt Detection | Yes | No | No |
| Extending Sweeping Side Brush | Yes | No | No |
| Detect and Re-Mop Stains | Yes | Yes | No |
| Mop Tray Wash | Yes | Yes | No |
| Mop Pad Wash | Yes, 158-degree | Yes, 140-degree | Yes, unheated |
| Threshold Max | 22mm | 20mm | 20mm |
| Vacuum Dimensions | 350mm*353mm*96.5mm | 350mm*350mm*97mm | 350mm*350mm*103.8mm |
| Dock Dimensions | 606.5mm*426mm*499mm | 590mm*340mm*457mm | 606.5mm*426mm*499mm |
| Battery Life on Low Power | 198 mins | 260 mins | 210 mins |
Who Should Buy Which Model?
It looks to us like Dreame has a little something for everybody, with the X40 being by far the most advanced model, albeit also the most expensive. Let’s find out who each of these Dreame robot vacuums is ideal for.
Dreame X40 Ultra
The Dreame X40 Ultra is by far the most advanced model in this lineup, taking the advanced features of the X30 to the next level. For those who are looking for the highest functionality and the most hands-free experience, the Dreame X40 Ultra is the model we recommend.
Dreame X30 Ultra
If you’re looking for a good balance between price and performance, the Dreame X30 might be right for you. It hits the mid-point between the X40 and L20 in regards to obstacle avoidance and suction power, but more notably, the X30 introduced many of the innovative features now found in the more recent, and pricier, X40. This means you can get a high-tech robot vacuum at a more affordable cost.
Surprisingly however, in our evaluations, the X30 Ultra didn’t perform as well in some areas as the L20, so be sure to check out that review to see which performance metrics are important to you.
Dreame L20 Ultra
For those looking for a reliable option, the Dreame L20 Ultra has demonstrated excellent performance in our studio tests. With a high-functioning dock for managing debris, water and washing its mop pads, many users have been happy that they have added the L20 to their cleaning arsenal.
That said, it is missing some of the more recent and advanced features that the later versions, the X30 and X40, have, like OmniDirt Detection and RoboSwing, along with a higher suction levels. It’s a great option for those looking for a combination of affordability and functionality.
Rapid Innovations in Robotics and AI
Robot vacuum manufacturers are continuously innovating in response to consumer feedback and rapid advancements in robotics and AI. New releases are exciting, but it can be hard to keep up. Thank you for trusting Vacuum Wars for insights and guidance on the latest in robotic vacuum technology.
See also: How we test robot vacuums
Our Conclusion
We have been having positive experiences with the Dream lineup this year, so which of these Dreame robotic vacuums you choose depends on what your needs are, and of course what your operating budget is. We hope this article helps you make a great choice, and if you still need to check out some options, browse our site for more Robot Vacuum Reviews and our Best Picks list to help you find your perfect fit.
