DreameBot L20 Ultra Complete: the same FLAGSHIP, only cheaper

Dreame Bot L20 Ultra Complete Reviews

Hey guys, welcome to RobotObzor! Today we’ll take a look at the new DreameBot L20 Ultra Complete robot vacuum cleaner. It’s a simpler version of the Dreame Bot L30 Ultra, which is the global face of the brand at the end of 2023. By slightly limiting the functionality, the price went down from $1700 to $1400-1500. And with all this, the package is completed by a year’s supply of consumables for the robot. The robot comes in a white-gold color as an option, which has been popular. So, I’ll thoroughly test Dreame Bot L20 Ultra Complete, discuss the differences from the L30 Ultra and share my own opinion about what parts of it I liked and didn’t, compared to the fuller model. Don’t forget to like and subscribe, and let’s get rolling!


Let’s start with the kit. The vacuum came in this box:

Dreame Bot L20 Ultra Complete: Box

The Complete version comes with these items:

Dreame Bot L20 Ultra Complete: Additional accessories
Additional accessories

Apart from the robot and charging station the box includes:

  1. Power cord.
  2. Two towel holders.
  3. A cartridge with the cleaning detergent, which goes into the station.
  4. An instruction manual.
  5. 3 extra carts with detergent.
  6. 12 extra towels.
  7. 4 extra trash bags, one of which is already installed into the station.
  8. 3 extra Hepa-filters.
  9. An extra central brush.
  10. And two side brushes.

This is an awesome kit! From over 150 kits I’ve seen on this channel, this is surely the best one! It takes the prize for sure above other vacuums and even the L30 Ultra.

Dreame Bot L20 Ultra Complete: Package

You can also buy a module for connecting to the sewerage and water supply. Its price at the time of the review starts from 12k rubles. The kit includes tanks for dirty and clean water, a base for installing the module in the station, a magnetic control unit through which water flows from the water supply to the station, as well as various tubes, adapters, connectors and other accessories for connecting the station to the utilities. A manual is included for connecting the tubes.

Dreame Bot L20 Ultra Complete: Module configuration
Module configuration


Now let’s take a look at DreameBot L20 Ultra Complete’s design. Let’s start with the robot itself. It’s round and comes in white with gold pieces, looking sleek and stylish. The plastic itself is matte, not stained. The height of the robot is about 104 mm (4 In.).

Dreame Bot L20 Ultra Complete: View from above
View from above
Dreame Bot L20 Ultra Complete: Body height
Body height

A wall sensor is mounted on the right side of the bumper. The front has a camera for seeing objects on the floor and using the robot remotely.

Dreame Bot L20 Ultra Complete: Side view
Side view

On both sides of the camera are 3D sensors and LED’s, which allows the robot to accurately recognize objects in pitch black darkness. The backlight turns on automatically.

Dreame Bot L20 Ultra Complete: Camera

There’s three buttons on the panel. Lidar works the navigation and is protected by a spring loaded cover. The top cover is completely removable and is held on magnets. Under it is a dust container with a volume of 350 ml (11.8 Oz.). The filtration system is mesh and HEPA. Both the container and filters can be washed. The water tank is hidden inside the robot. Water is automatically pumped into it at the station. The volume of the tank is 80 ml (2.7 Oz.).

Dreame Bot L20 Ultra Complete: Dustbin

There’s 4 anti-fall sensors. Next to the swivel roller is a carpet sensor. The side brush is three-beamed, and easy to take off.

Dreame Bot L20 Ultra Complete: Bottom view
Bottom view

The center brush unit is fluid, and silicon. Both sides can be disassembled for cleaning from hair and fur.

Dreame Bot L20 Ultra Complete: Central brush
Central brush

If needed, you can purchase a regular bristled turbo brush, which cleans carpets better.

Dreame Bot L20 Ultra Complete: Regular bristled turbo brush
Regular bristled turbo brush

The DreameBot L20 Ultra Complete is also compatible with the new center blade brush that the Dreame Bot X30 Pro has. I tested it in the X30 review, which you can check out right now!

Dreame Bot L20 Ultra Complete: Blade brush
Blade brush

The napkin holders have magnets and are mounted on the robot. The napkins hold on with Velcro.. The napkins are held on with Velcro. I’ll say that DreameBot L20 Ultra Complete can automatically lift the wipes when driving on carpets, which is pretty good.

And here’s how one of the main features of the robot is organized – the retractable napkin holder (MopExtend™). The paw slides out to the right, so that the wipe comes out of the body. There is no blind spot between the edge of the robot and the baseboard. A good solution that has already been used by Dreame Bot X20 Pro, which was the first to be equipped with this system!

Dreame Bot L20 Ultra Complete: MopExtend™

The station couldn’t be more automatic. It self-cleans the dust container, washes wipes with water, and dries them with warm air after cleaning, and even automatically mixes detergent into the water when washing and refilling the vacuum’s tank. The only difference from DreameBot L30 Ultra is that it doesn’t heat the water when washing wipes, instead uses room temp water.

The ramp for the robot to drive in and the tray where the wipes are washed can be removed. The trash bag is in the middle under the lid. You can store a spare bag next to it.

Dreame Bot L20 Ultra Complete: Removable ladder and washing module
Removable ladder and washing module

One note – the platform has magnetic pins. They are needed for L20 Ultra Complete to unhook the holders with napkins at the station if needed. Thus, the robot can leave the station only for vacuuming without wipes, which takes away any contact with carpets. A pretty clever solution!

Dreame Bot L20 Ultra Complete: Unfastening napkins
Unfastening napkins

The water tanks are under the top cover. The dirty water tank has a capacity of 4 liters (1 G) and the clean water tank holds 4.5 liters (1.2 G). Between them, an additional lid conveniently stores the cleaning tool and a 450 ml (15 Oz.) detergent cartridge.

Dreame Bot L20 Ultra Complete: Detergent tank
Detergent tank

The clean water tank doesn’t have a silver disinfection module inside, like the X20 Pro and X30 Pro, but you can buy it separately and install it in the tank. This module simply slips onto the tube, and the tubes are the same size, so it’s definitely compatible.

Connecting to the sewer and water supply

As a reminder, the station has outlets for connection to the sewer and water supply. They are hidden behind the cover. Connection isn’t difficult. First you need to unscrew the jumper between the tanks, remove the hole plugs inside the station, install the platform for the modules and the modules themselves from below. Then put the jumper back.

After all of that, you connect the station to the water supply according to the instructions. Personally, I did I took this path: took out next to the station overhead socket, which is simply glued to the tiles on the wall, as well as hidden in the baseboard hoses, one of which is connected to the water mains with a pass-through outlet, coming in the kit, and the second connected to the siphon under the sink. That is, initially I didn’t plan a spot for the station when renovating my home, but it didn’t stop everything from looking good in the end. Take my suggestion if it helps.

Dreame Bot L20 Ultra Complete: Connection to the sewer
Connection to the sewer

Once the station is connected, a notification appears in the app that the special module is connected. You will need to start testing the station. My test went fine, and I could use a fully automatic station.

We start the self-cleaning function and voila – water is drawn into the clean water tank and after washing the wipes is drained into the sewer. Take into account that the lid must be closed, as the system requires a vacuum to work.

Technical features

DreameBot L20 Ultra Complete’s main features:


  • Battery Li-Ion 6400 mA*h.
  • Suction power up to 7000 Pa.
  • Work time up to 260 mins.
  • Trash tank 350 ml (11.8 Oz.).
  • Water tank 80 ml (2.7 oz.).
  • Obstacles up to 20 mm (.78 In.).
  • Size: 350*104 mm (13.7×4 In).


  • Clean water tank: 4,5 L (1.2 G).
  • Dirty water tank: 4 L (1 G.).
  • Trash bag: 3,2 L (.84 G).
  • Size: 607*426*499 mm (23.8x 16.7×19.6 In.).

All I want to really emphasize is only the supposed high suction power, which I’ll test. Compared to the L30 Ultra, the power is reduced by 300 Pa, but still very high compared to most vacuums. The rest is unchanged.


As for the features, DreameBot L20 Ultra Complete is controlled through the Dreamehome app. It connects to the wifi without any problems. There’s no regional blockages. The app is in several languages, the robot itself also speaks several languages. Everything seems pretty convenient.

Dreame Bot L20 Ultra Complete: App control
App control

The robot’s main functions are up on the screen:

  • Dirt container self-cleaning.
  • Wipe cleaning.
  • Wipe drying with warm air.
  • Automatic detergent supply.
  • Wipe lifts on carpets.
  • Object detection on the floor.
  • Camera is illuminated under any light.
  • Remote home monitoring through the cameras.
  • Saves multiple maps in memory..
  • 3D-map of the house.
  • Automatically zones the house into rooms.
  • Choose individual rooms for cleaning.
  • Virtual walls and no-go zones (separately for mopping).
  • Regulate suction power.
  • Periodic wipe cleaning (by room, by area).
  • User mode
  • Ultimate mode.
  • Cleaning log.
  • Cleaning schedule.
  • Automatic power increase on carpets.
  • Carpet avoidance while mopping.
  • Automatically takes off wipe off the holder on base.

This robot has so many features to flexibly use and adjust your cleaning preferences. For example, there’s Ultimate mode, in which the robot automatically determines the cleaning pattern depending on how dirty the floor is, activating repeated cleaning or independently changing the power, as well as how wet the wipes are. This is a smart move that improves cleaning efficiency and increasingly integrates AI into the vacuum’s algorithms.

Dreame Bot L20 Ultra Complete: Functions

Separately, I’ll show you how remote tracking works. Put in the passcode you made, the camera switches on, through which the image is transmitted to the smartphone screen in real time. The picture quality is pretty good. You can either manually control the robot or specify a place on the map where it should go by itself. You can also take photos, which will be saved in a separate folder, and send voice messages through the robot’s speaker. And here’s another cool feature – in guard mode the robot will go to a marked location, and do a 360 spin, capturing all sides of the room. Very cool!

Dreame Bot L20 Ultra Complete: Remote tracking
Remote tracking

The only thing that’s been removed from the functions, compared to L30 Ultra, is the voice assistant, thanks to which you can give commands to the robot in several languages, without any additional devices. But, even in the L30 this assistant is still in beta, and very new. So it’s not as critical at the moment. I hope that after successful testing it will be added to the L20 Ultra.


And finally, let’s move on to the tests. First, let’s check the navigation in a room with obstacles. The robot first goes around the perimeter of the room, then cleans the entire available area in a zig-zag. It rammed the legs of the dryer a bit, but eventually went around. It swept around the box and chair legs separately before returning back to the station. Test passed successfully!

Dreame Bot L20 Ultra Complete: Navigation in a room with obstacles
Navigation in a room with obstacles

And as for the rest of the house, the robot cleans room after room around the perimeter, then a zig-zag. After each room, as it turns out, it returns to the station and washes the wipes, then starts cleaning from where it left off. In total, the robot came back to the station 5 times and washed the wipes while cleaning. Everything looks very clean, and the navigation is really good!

Dreame Bot L20 Ultra Complete: Navigation within the home
Navigation within the home

Object detection

The object detection system is very accurate. The vacuum successfully recognized 6 out of 6 items. It grazed a sneaker, a toy and a floor scale, but this isn’t at all a problem, because the important traps were avoided. The pet poop, wires, and a sock.

Dreame Bot L20 Ultra Complete: Recognizing objects in good lighting
Recognizing objects in good lighting

But in the dark, things are different. This time it ran over the pet poo, chewed a sock and moved a floor scale. All in all, it beat 3 out of the 6 items. So comparing it to its counterparts, Dreame has one of the most accurate item recognition systems, but there’s room to grow. In any case, the robot is very careful and almost never touches the furniture, but Dreame engineers still have work to do!

Suction power

The suction power, on the other hand, really impressed me. DreameBot L20 Ultra Complete was able to suck dirt out of even a 10 mm (.39 In.) crack without a problem. This is definitely a very powerful vacuum, just like its L30, X20 Pro and X30 Pr brothers.

Dreame Bot L20 Ultra Complete: Suction power
Suction power


The vacuuming quality of different dirt on the laminate is good. There’s only a little bit of dirt left in the corners, where round robots can’t reach. It does a slightly better job of sweeping out than most other round robots though. See for yourself. The center brush doesn’t have any hair or fur wrapped around it, which is its main advantage. All of the dirt is in the bag. Test passed with flying colors!

Dreame Bot L20 Ultra Complete: Dry cleaning
Dry cleaning

Carpet cleaning

The robot does a quality job cleaning carpets. Both thanks to the high power and the fluid turbo brush module. Test passed!

Dreame Bot L20 Ultra Complete: Carpet cleaning
Carpet cleaning

Mopping and carpets

As for mopping near carpets, you get three choices. The first is to automatically pick up the wipes when you drive onto the carpets, which allows the robot to vacuum and wipe the floor at the same time, leaving the carpets dry and clean.

The second option is to turn on the auto carpet detection function while mopping. And here’s your third choice. The robot first vacuums and mops the floor, then drives to the base, automatically unhooks the wipes and returns to the floor, and keeps vacuuming. This is important for taller carpets to never have contact with the mop.

Dreame Bot L20 Ultra Complete: Mopping with carpets
Mopping with carpets

The idea is very cool. And it’s not just because the carpets aren’t getting wet, but the solution is actually more reliable than lifting the wipes on the carpets. The system can fail if used frequently.

Scrubbing dirt

This robot does a good job of scrubbing dirt. And you can see that thanks to the extended wipe, the robot scrubs out the baseboard. There’s still a blind spot, but it’s only in corners where the round wipe can’t go.

Dreame Bot L20 Ultra Complete: Scrubbing dirt
Scrubbing dirt

And another important thing – Dreame Bot has an updated floor cleaning mode along the baseboard and in the corners. When it goes into corners, it backs up and mops the floor in the corners as tightly as possible. A cool change that deserves recognition.

In any case, the quality for everyday mopping is actually the best so far! No streaks and traces of dirt remain, this test is passed!

Scrubbing hard stains

L20 Ultra Complete couldn’t manage to scrub hard stains. It was still able to scrub coffee stains, but dried sauce stains were beyond its power. The quality is inferior to some more expensive options. Nevertheless, for everyday use, mopping should be more than enough. Another thing the engineers can keep in mind!

Cloth cleaning quality

And right away I’d like to test how efficient the station is. Let’s start with the quality of wipes washing. With everyday conditions after washing the floor from dirt, the wipes are really dirty. And after washing the wipes I can say that they are really clean. A good amount of dirt is washed out under the pressure of warm water. That’s a plus!

But after tough stains, the wipes don’t wash out too well. Although again, even with heated water the station L30 Ultra showed a similar result. So I consider the lack of heated water not horrible. At the same time, I consider the presence of heating as a small plus.

And washing the station is easy. We remove the tray to rinse out the wipes and the ladder for the robot. We rinse it with water in the sink and put it back. The station is clean!

Self-cleaning quality

The self-cleaning quality of the dirt container is good. I ran the robot in a room with a lot of dirt, which it cleaned and packed the bag to the brim. After the robot returns to the station, the bag is completely cleaned. Self-cleaning is done very well!


The 2 cm (.78 In.) high thresholds are no match for the vacuum, and it goes over without a problem, while lifting the wipes. That’s a plus!

Dreame Bot L20 Ultra Complete: Obstacles

Dark spaces

Black surfaces don’t scare it either, it drives over a black mat with no problem. This is another advantage!

Dreame Bot L20 Ultra Complete: Dark spaces
Dark spaces


As for the volume, it’s within 56-72 dB. The volume is quite standard for this model, given the high suction power.

Dreame Bot L20 Ultra Complete: Volume


DreameBot L20 Ultra Complete was thoroughly reviewed and tested. Our evaluation system scored it 217 points and took second place in the overall rating of tested robot vacuum cleaners, behind only the older DreameBot L30 Ultra, which scored 219 points. I’ll highlight the pros and cons, after which I will share my own opinion about it. I liked the following:

  1. An extendable wipe, thanks to which it can clean right up to the baseboard.
  2. Having an object detection system that even works in the dark.
  3. Remote home monitoring through the camera.
  4. Combined station for self-cleaning, washing and drying wipes.
  5. Effective cloth drying with warm air.
  6. Auto wipe holder removal at the station for dry cleaning.
  7. Automatic detergent supply when washing wipes.
  8. Increased water tank capacity.
  9. An optional utility connection kit is available.
  10. Quality self-cleaning and wipe washing.
  11. Ultimate mode, thanks to which the robot chooses its own cleaning algorithm.
  12. Improved floor cleaning algorithm in corners, where the robot drives as far as possible into it with its rear end resting on the wipe.
  13. Quality mopping and vacuuming on all surfaces.
  14. The turbobrush is easier to clean.
  15. Automatic napkin lift when driving onto carpets.
  16. Easy maitenance and cleaning.
  17. Lots of functions for easy adjustments.
  18. Good off-road.
  19. The vacuum isn’t scared of dark spaces.
  20. Stylish design.
  21. Good assembly and a trusted seller.
  22. Has a warranty and service.
  23. And who could forget the ultimate kit, which had consumables for a year!

As for what could be improved:

  1. Still leaves dirt in the corners.
  2. Can’t scrub hard stains.
  3. The object detection system needs some work.
  4. A very large station.

Overall, I can say that any remarks are more like requests than judgements. The lack of a voice assistant and water heating function in the station isn’t a serious drawback. In my opinion, by the standards of 2023 – this isn’t a worse option than the OBJECTIVELY best robot vacuum of 2023 – DreameBot L30 Ultra. And for some, even the L20 Ultra Complete could deservedly be considered the better choice of these two. In favor of the white and gold color, the extended package and a slightly lower cost. Still, the L30 is the older model, and my guess is that there may be future feature upgrades that will be supported by the L30 but not supported by the L20. This was the case with the Dreame Bot L10s Ultra. The advantage is that it was faster to add a new algorithm for cleaning the floor along the walls than the nearly identical Dreame Bot L10s Ultra.

In any case, DreameBot L20 Ultra Complete deserves to be called one of the best vacuums of 2023 in terms of design, technologies, functions and most importantly – cleaning efficiency. Plus, it’s very stylish, easy to maintain, as autonomous as it gets and adapted to the market. So, choosing the best robot vacuum between Dreame Bot L20 Ultra Complete and L30 Ultra, I would recommend to focus more on the color, as well as the expanded kit and a slightly better price against the potential upgrades in the L30.

On this note, I’d like to end the review. If you still have questions, feel free to ask them in the comments down below. Have fun shopping, bye!

Alexander Miasoedov

The founder and chief editor of the project, an expert on the choice of robot vacuum cleaners.

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