I've reviewed the Dreame L50s Pro Ultra, and it's a good robot vacuum option if you have mostly hard floors — but not so much for carpets

The test results are very revealing

Dreame L50s Pro Ultra
(Image credit: © Tom's Guide)

Tom's Guide Verdict

The Dreame L50s Pro Ultra offers low-maintenance operation, accurate mapping, and strong hard-floor cleaning. However, it performs poorly on carpets, leaving debris behind and slight mopping residue.

Reasons to buy

  • +

    Affordable price for the performance

  • +

    Low-maintenance base station

  • +

    Great cleaning on hard floors

  • +

    Accurate mapping

Reasons to avoid

  • -

    Very poor carpet performance

  • -

    Some residue after mopping

Why you can trust Tom's Guide Our writers and editors spend hours analyzing and reviewing products, services, and apps to help find what's best for you. Find out more about how we test, analyze, and rate.

When trying to find the best robot vacuum for your home, it’s important to consider all of the variables. What kind of flooring do you have in your home? Are there any pets? Children? Each robot vacuum has its strengths and weaknesses.

The strengths of the Dreame L50s Pro Ultra include great cleaning on hard floors, with accurate mapping. The price point is also very attractive for the performance, and the base station is low-maintenance for busy households.

However, if you have a home with carpet, this robot vac should be a skip for you as it struggles here. It also leaves some residue behind after mopping too. To find out more and see if it could be the right fit for your home, keep reading this full Dreame L50 Pro Ultra review.

Latest Videos FromTom's Guide

Dreame L50s Pro Ultra review: Specs

Swipe to scroll horizontally

Price

£649

Robot dimensions

13.8 x 13.8 x 4.1 inches

Base station dimensions

23.2 x 18.0 x 13.4 inches

Suction power

30,000Pa

Mapping

Yes

App

Yes

Self-emptying

Yes

Mop function

Yes

Battery

5,200mAh

Runtime

171 minutes

Dreame L50s Pro Ultra review: Price & availability

The Dreame L50s Pro Ultra is available for £649 on Amazon U.K. in White or Black. This is a very reasonable price for the good performance you get from this robovac. This specific model isn’t available in the U.S. However, you can buy the Dreame L50 Ultra for $899 from Amazon, which has slightly lower suction power.

Around a similar price is the Roomba Max 775 Complete. This robovac costs £799, and while it’s pretty loud, it will leave crisp cleaning lines behind on your carpet.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

However, I don’t love the roller mop on the Roomba. Instead, I'd recommend the Roborock Qrevo 2 Pro for £1,199. This is more expensive, but as I always say — when it comes to robovacs, you need to spend more to get good performance.

Dreame L50s Pro Ultra review: Design

The Dreame L50s Pro Ultra looks almost identical to the flagship Dreame X50 Ultra. Design-wise, there isn’t much that separates these two models, but their specs are very different. The base station measures 23.2 x 18.0 x 13.4 inches, but has a sleek design so it’s not an eyesore in your home.

In the base station, there’s a self-emptying dustbin, along with clean and dirty water tanks. It can maintain itself for up to 100 days without taking up a lot of space.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

The robot measures 23.2 x 18.0 x 13.4 inches, which, again, is the same size as the X50 Ultra Complete. The L50s Pro Ultra looks a little different, though, since it has a sensor that is permanently deployed, unlike the retractable sensor on the X50 Ultra Complete.

With the Dreame L50s Pro Ultra, you get circular mop pads that clean themselves in the docking station. I find this shape far more effective than roller mops you get with other robot vacuums such as the Roomba Max 775 Combo.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

Another sleek design feature of the L50s Pro Ultra is the extending side brush. This sweeps all of the dust and debris that can get caught up at the sides of the room into the path of the vacuum for easy cleanup.

The bumper on the front of the robot is also very bouncy, and this helps prevent damage as it bumps into surroundings.

Dreame L50s Pro Ultra review: App

The Dreame L50s Pro Ultra uses the Dreame app. I’ve used this app before when testing other home appliances from Dreame, and its user-friendly interface is one of my favorites to use in my home.

All of the controls are easily mapped out, and when you initially set up the app with your device, it gives you a walkthrough of controls.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

I like that I can adjust the operations of the vacuum each time it’s used, as I don’t need to robovac on full suction power for every single clean, so I can save some power.

Dreame L50s Pro Ultra review: Mapping

Mapping the ground floor of my home with the Dreame L50s Pro Ultra took around 10 minutes. This is what I’ve come to expect when initially mapping my home with a new robot vacuum. It uses a laser distance sensor (LDS) to build a map and identify any obstacles.

Dreame L50s Pro Ultra

(Image credit: Dreame)

The map also denotes where there’s carpet or hard floors, so the robovac knows when it needs to lift the mops up from the floor. It shows the room boundaries accurately, and you’re able to name them in the app.

Dreame L50s Pro Ultra review: Cleaning

I was generally impressed with the cleaning capabilities of the Dreame L50s Pro Ultra. It did a great job of picking up most of the debris on hard floors, and left my kitchen sparkling after a mopping session. With that said, if your home is mostly upholstered with carpet, then you should try the Dreame X60 Pro Ultra Complete, as this has a much higher suction power for better results.

Vacuuming

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

To test the vacuuming performance of the Dreame L50s Pro Ultra, I conducted my usual lab testing criteria first on hard flooring, and then on carpet. Operation is a little quieter than the Dreame X50 Ultra Complete that I recently tested, but that’s because of the lower suction power.

Hardwood floor:

I think the performance on hard floors is very good. Seeing as this robovac only costs £649, it did a good job of picking up most of the debris. The side-sweeping arm did a good job of gathering any debris that moved to the side of the room.

Swipe to scroll horizontally
Header Cell - Column 0

Dustbin weight before

Dustbin weight after

Percentage of debris picked up

Hair (5g)

25g

29g

80%

Rice Krispies (20g)

25g

40.5g

76%

Chia seeds (20g)

25g

39.2g

71%

It’s worth noting that on hard floors in particular, the robot pushed around a lot of the debris with the airflow it was producing. This wasn't a great deal — certainly not as bad as the Mova V70 Ultra Complete — but it was enough to impact cleaning.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

Carpet:

Carpet performance is a different story entirely. The extendable side-sweeping arm worked well to gather debris at the edges of the room. But the wheels then seemed to crush and push debris into the carpet. This quickly proved frustrating when, after cleaning was complete, I was looking at a sea of crushed Rice Krispies.

Swipe to scroll horizontally
Header Cell - Column 0

Dustbin weight before

Dustbin weight after

Percentage of debris picked up

Hair (5g)

25g

26.2g

24%

Rice Krispies (20g)

25g

36.4g

57%

Chia seeds (20g)

25g

27.5g

12%

It also had a hard time picking up chia seeds, which are small and naturally fall through the pile of the carpet.

Mopping

To evaluate the mopping capabilities of the Dreame L50s Pro Ultra, I put ketchup, soy sauce and mayonnaise on my kitchen floor. I then created a spot-cleaning routine for the robovac, so it would only focus on the area.

The floor was completely clean afterwards, although there was a slight residue left behind after the clean was completed. The Dreame X60 Max Ultra Complete does a much better job of ensuring all residue was gone.

Dreame L50s Pro Ultra review: Storage & maintenance

Maintenance with the Dreame L50s Pro Ultra couldn’t be easier because it essentially looks after itself for 100 days. With the clean and dirty water tanks along with the base station’s dustbin, the robovac can empty itself and refill its own water. The cleaning solution that comes with the robovac also auto-refills, so the mopping always smells fresh.

Dreame L50s Pro Ultra

(Image credit: Tom's Guide)

It can also clean the mop pads with 100ºC water, so you don’t have to touch the grime after it’s cleaned your floors. The base station also dries the mops with hot air, so they’re always good to go for your next round of cleaning.

Dreame L50s Pro Ultra review: Verdict

The Dreame L50s Pro Ultra is an affordable robot vacuum for the performance you’re getting. The base station also makes the experience incredibly low maintenance, which is useful if you have a particularly busy household. It excels on hard floors, and the mapping is simple yet accurate.

However, performance on carpets is quite poor, with a lot of debris left behind and embedded in the carpet. There is some residue left over after mopping is completed.

It’s impressed me in some ways and totally let me down in others, but for excellent robovac performance, you need to spend on a flagship.


Google News

Follow Tom's Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds.


Ashley Thieme
Staff writer, Reviews

Ashley is a staff writer on the the Reviews team at Tom’s Guide. She has a master’s degree in Magazine Journalism from Cardiff University and a BA in Journalism, Media and Sociology. She has written for titles including Women’s Health UK, writing health and wellness stories, and Virgin Radio UK, specializing in entertainment news and celebrity interviews. She has reported on a variety of topics including music, literature, motorsport, entertainment and health. She has previously reviewed live music events, books, and wellness products but discovering the top audio equipment on the market is what she does best. When she is not testing out the latest tech, you can find her either curled up with a cup of tea and a good novel or out hiking.

You must confirm your public display name before commenting

Please logout and then login again, you will then be prompted to enter your display name.