Xiaomi Mijia STYJ02YM LDS Edition Review

By Natalie Red·Updated: Nov 6, 2019· 5 min read

In August 2019, Xiaomi released the newest robot vacuum - Xiaomi Mijia STYJ02YM. It is the first model in the family that can do both: mopping and sweeping.

The Xiaomi Mijia STYJ02YM newest sweeping and mopping robot vacuum

With increased suction power, more efficient cleaning path in mopping mode, additional features a bigger accessory pack, the newest Xiaomi MiJia STYJ02YM might be a best-seller soon. Let's see what makes the new model attractive and why it's worth buying.

Xiaomi Mijia STYJ02YM vs. Xiaomi Mi Robot vs. Xiaomi MiJia 1S

Model name Xiaomi Mi Robot Xiaomi MiJia 1S Xiaomi Mijia STYJ02YM
Battery life 150 min 150 min 110 min
Suction power 1,800 Pa 2,000 Pa 2,100 Pa
Mapping yes yes yes
Mapping technology LDS Laser LDS Laser + Visual Sensor LDS Laser
Zoned cleaning yes yes yes
Dustbin size 420 ml 420 ml 550 ml
Mopping no no yes
Water tank size - - 550 ml
Filter HEPA HEPA HEPA
Battery capacity 5,200 mAh 5,200 mAh 3,200 mAh
Restricted areas no yes yes
Room cleaning no yes yes
Scheduling to clean in one room no yes yes
Multiple maps support no yes no
Sensors 12 14 12
Noise level 68 dB 68 dB N/A
Crossing ability 0.59 in / 15 mm N/A 0.79 in / 20 mm
Height 3.78 in / 9.6 cm 3.78 in / 9.6 cm 3.72 in / 9.4 cm
Cleaning coverage 2691 ft2 / 250 m2 2691 ft2 / 250 m2 1937 ft2 / 180 m2
Resumption yes yes yes
Warranty 12 months 12 months 12 months
Price ~$250 ~$340 ~$530

Design & Navigation

The Xiaomi Mijia STYJ02YM has the same design as its older brother, the Xiaomi Mi Robot.

With the LDS laser on top, the robot scans the surroundings to create a map of the cleaning area so the robot knows where it should clean. Mapping helps the vacuum to cover the whole area without having it cleaning the same areas twice or leave some areas untouched.

The Xiaomi Mijia STYJ02YM is guided by the LDS laser

When the vacuum is working, it follows a back-and-forth navigation pattern.

The cleaner is equipped with 12 high-precious sensors that help it navigate around without falling off, bumping into furniture, or just be more careful when operating.

When it finishes cleaning, it creates a map which can be divided, merged, and has the ability to name each room. This feature is very helpful if you don't need to clean the whole house. Just set the robot to go directly to the kitchen/bedroom and let it work.

The most significant improvement over the previous models - mopping feature. The Xiaomi Mijia STYJ02YM can mop, sweep, mop and sweep at the same time. Neither the Xiaomi Mi Robot or Xiaomi MiJia 1S Robot Vacuum can mop.

The Xiaomi Mijia STYJ02YM package includes many extra accessories
The package contents

Mopping mode

The Xiaomi is equipped with two containers, the one (550 ml) for sweeping (dust container), the other container (550 ml) is 2-in-1 for mopping and sweeping. The second container can be used if you want the robot to mop and sweep. The previous models have a 420 ml dust container, by the way.

the Xiaomi Mijia STYJ02YM is equipped with two containers, one of is 2-in-1 and has two types of mopping pads for different cleaning needs

If you need the Xiaomi to mop only, the 550 ml water container can be bought separately.

We are not sure if you can make the robot only mop with the included container, though it can do both at a time.

The Xiaomi Mijia STYJ02YM can sweep, mop or sweep and mop at the same time

The two in one container can be half-filled with water for mopping, the second half of the tank is for dust the robot sucks up when working.

In mopping mode, the Xiaomi follows a Y-shape (two-way repeated wiping) path. It helps to provide better mopping performance since the robot doesn't just drag the mop but returns to the same spot twice for better results.

The Xiaomi Mijia STYJ02YM follows an efficient Y-shape path in mopping mode
The Xiaomi Mijia STYJ02YM follows an efficient Y-shape path in mopping mode

There is not much information about the model. The manufacturer says it has three level water settings, which means you can set the level of water dripping depending on your needs. Unfortunately, we are not sure, either you can change the settings in the app or directly on the water tank.

There are two types of mopping pads in the box included: wet mop and a half wet mop. Insert the 2-in-1 water container, attach the mop stand with a pad you need and let the robot work.

We should say, the Xiaomi Mijia STYJ02YM is not suitable to remove stubborn stains, but it is a better solution than most hybrid models that just drag the pad. The robot is suitable for everyday mopping and will prolong the time between actual manual mopping sessions.

Mi Home & Smart Features

The Mi Home app has many options such as tracking the robot in real-time, manually control its movements, switch between cleaning modes, track when the accessories need to be replaced, etc.

The smartest features would be zoned cleaning, restricted areas, and room cleaning.

If you want the robot to not go to certain places, you can set blocked zones, and the robot won't cross them. Useful if you need to prevent carpets from getting wet when the robot is mopping, or some areas might be cluttered, etc.

Setting virtual walls and a restricted area in the Xiaomi Mijia STYJ02YM

Zoned cleaning is great for spot cleaning. If you have high-traffic areas or places that are dirtier than others, you can make the robot work there by drawing a rectangle on the created map.

Make the Xiaomi work directly in the kitchen by using the room cleaning feature

Room cleaning is our favorite feature. Since you can divide the map into separated rooms, the robot can be ordered to go to the kitchen or living room if needed. If you don't need to clean some rooms such as a guest room, you can either use blocked areas or simply choose other rooms to clean.

Battery life

The Xiaomi Mijia STYJ02YM has a smaller battery size of 3,200 mAh than its brothers Mi Robot and MiJia 1S which have 5,200 mAh.

The robot is ideal for big homes

Predictable, the newest MiJia lasts less, up to 110 minutes other than 150 minutes the siblings do.

Since the Xiaomi resumes cleaning in case it does not finish the job before the battery dies, the robot is suitable for big homes. When the battery runs lower than 20%, it returns to the dock, recharges up to 80% and finishes cleaning from the same spot it left off.

The Xiaomi Mijia STYJ02YM LDS Editiong Charging Dock
Xiaomi Mijia STYJ02YM charging dock

Suction Power

The newest model has the strongest suction among the Xiaomi cleaners delivering 2,100 Pa of suction. The older models have 1,800 (Mi Robot) and 2,000 Pa (MiJia 1S).

Stronger suction helps a lot when you need deeper cleaning on carpet.

Climbing Ability

Crossing ability seems to be increased too. From 0.59 / 15 mm (Mi Robot) to 0.79 in / 20 mm (Mijia STYJ02YM).

It matters if you have taller thresholds or thicker carpets. The Mi Robot has issues with thick carpets, the newest model promised to be better at this.

Filtration System

Since there's not much information, we are not sure if the robot is equipped with a filter that can be washed with water. However, we know that the Xiaomi Mijia STYJ02YM is equipped with a HEPA filter and is safe for everyone who suffers from an allergy or asthma.

Price & Where to buy

The Xiaomi Mijia STYJ02YM so far is only available on Gearbest where you can get it for ~$530.


Comments ()

  1. HGST
    #      +1
    This is the exact same model as Viomi V2 just rebadged as Mijia
    reply   
    1. Natalie Red
      #      +1
      The Viomi V2 has a different color option, it is a black&mint and its accessories are made in the same color scheme. The Xiaomi is black/white&orange.
      The Viomi has a filter that can be washed with water, the MiJia's filter is non-washable.
      The Xiaomi stores up to three maps in memory, the Viomi saves one map only. (not completely sure about this but the previous MiJia version is capable of saving multiple maps, so I assumed the new one is too).
      The Xiaomi is equipped with a two-in-one water tank in the box, and you can get a water tank separately, the Viomi has two containers: one is for dust, and the other one is for water. The two-in-one container also can be bought separately.
      The Viomi's crossing ability is 20 mm (0.8 in) while the Xiaomi can do a 15 mm (0.6 in) obstacle. This makes the Viomi suitable for thicker carpets.
      The Viomi's dust container holds 600 ml of debris, the MiJia's dustbin is 550 ml.

      As you can see, they might have similar features, but in fact, 90% of the existed robot vacuums do, it does not make them the same. Each robot has advantages, and the Viomi vs. MiJia is no exception.

      reply   
      1. Chris
        #      +1
        How do you get the Xiaomi to store more maps?
        Can I just take it up to my second floor and use it there and it will remember the ground floor and second floor map separately?
        reply   
        1. Natalie Red
          #      0
          The robot creates a map when it starts from the charging dock and automatically gets back to the dock when finishing cleaning. If you place the dock on the first floor, the Xiaomi cleans and returns to the dock on its own, it will create one map. For the second floor map, place the dock manually upstairs, let the robot starts cleaning from it and finish cleaning by docking itself. Now you have two separates map and the robot will recognize its location when you place it upstairs or downstairs.
          reply   
        2. Peter
          #      0
          Please check Viomi V2 PRO, ti's the same robot like STYJ02YM, just design is different
          reply   
          1. Michael Fisher
            #      0
            Curiously, there are two other robot vacuums: Proscenic M7 and Conga 3690 Absolute. They look absolutely the same as the Viomi V2. Would be great to know who is the original OEM manufacturer of these products.
            reply   
            1. AA
              #      0
              Yes, the structure and many spare parts, even if Cecotec declares… 2700Pa. The software and the mapping are different. I had Conga for a few days. It has 5 maps and all the possible functions, even the engine or water stop. The problem is the connection and the bad assistance.
              reply   
          2. Chris P
            #      +1
            Hi, I'm looking for buying one of these 3 models for next «11.11» sales: Xiaomi Mijia STYJ02YM, Viomi V2 PRO or Roborock S50.
            Have a dog, live in a flat with 2 floors.
            Which one is better? The «old» Roborock or the new 2 brothers Viomi and Mijia?
            Will roborock continue to have new firmware releases in future (maybe multi floor maps)? Or is it better choosing a new model with new features even if maybe the app needs to improve?
            Thank you
            reply   
            1. Natalie Red
              #      0
              Well, let's see. Please keep in mind, any of the Xiaomi or Viomi is not related to Roborock. Roborock is a separate company and has nothing in common with the Xiaomi or Viomi except for the Xiaomi Mi Robot which they produced with Xiaomi together. Why I am pointing this out? Roborock has great customer service and if you have any issues with the product, you can always contact them and get a response in no time which you can't do with the Viomi or Xiaomi.

              The Roborock app (or the Mi Home app) gets regular updates which I can't say for sure the Viomi or Xiaomi will have. For example, we have the Viomi V2 and the app is still raw even though the product was released about 6 months ago.

              As for the multi-floor maps update for the Roborock S5, I don't know for sure whether the vacuum will have it or not.
              Do you have carpets? If you don't have thick carpets or tall thresholds, have a look at the Roborock S4. It has smart features of the S6, only can't cross any obstacle taller than 15 mm and lacks mopping. Also, if you live in a flat with 2 floors, I would recommend getting a robot with multi-floor map support but it's not necessary, just would be more convenient to use in such a household.

              Also, if your dog sheds a lot and has long hair, consider getting a robot with a brush that has detachable tips, much easier to maintain, the Viomi's brush and the Roborock S5 brush is solid, not sure about the MiJia's roller.

              Hope that helps. If you have any questions, feel free to contact me.
              Natalie
              reply   
              1. Chris P
                #      +1
                Hi Natalie,
                Thank you very much for your answer. Now I' m more confused...Roborock was my third choice.
                I have read that PRo version of Viomi V2 has a new and fixed app that solves all previous problems.
                Regarding the brush, my dog has short hair but in my family we have long hair, so maybe roborock Is better. Also for price It Is cheaper.
                But mopping Is surely worse and I'd prefer have a good mop and both Viomi and mijia mop with Y way, ahead and back.
                So, It Is a really difficult choice.
                reply   
                1. Natalie Red
                  #      0
                  You can read a comment from Jamerica Merit under this video where she complains about the app of the Viomi V2. Honestly, I don't think they solve the previous problems on the Pro version. I am still very skeptical about the Viomi. When it first was released I recommended it since it seemed to have nice features, but it turned out to have many bugs too so who knows who knows…

                  The Roborock S5 has a solid brush too, the S4 and S6 are equipped with a brush with detachable tips.

                  I see what you mean about mopping. Go with the Xiaomi, it has the same pattern which is really great, it does work better at removing stains and overall my floors looked shiny after the Viomi had done its job. At least Xiaomi is a known brand and this is their fourth robot in the model line so I hope they all have better firmware.
                  reply   
                  1. Chris P
                    #      +1
                    Thank you very much. Bye
                    reply   
                    1. AA
                      #      0
                      the new firmware has fixed many bugs and now the map and the robot's movements are very similar to the Mijia STYJ02YM
                      reply   
          3. Daniel
            #      +1
            Can STYJ02YM save multiple maps?
            reply   
            1. Natalie Red
              #      0
              Unfortunately, there are no reviews of the new Xiaomi so I can't say for sure but the previous model (Xiaomi MiJia 1S) supports multi mapping so I figure, the new one save a few maps as well.
              reply   
              1. AA
                (edited})
                #      0
                No, only 1 (for now...)
                reply   
              2. AA
                #      0
                when writing a review you must know the product. I own Viomi V2 and Mijia STYJ02YM. There are inaccuracies in this review.
                reply   
                1. Michael Fisher
                  #      0
                  So could you please tell us what inaccuracies did you find in this article?
                  reply   
                  1. AA
                    #      0
                    do you want an example? the dustbin is identical, it only changes color. it is not true that they are not news, but the product must have it to write a review, so you will know that it has only one map, and more. Many accessories can be exchanged between Viomi and Mijia Sty. The mapping has become very similar and it is not true that there have been no updates for months, as is stated in the answers.
                    reply   
                    1. AA
                      #      0
                      again, the main brush is identical.
                      reply   
                  2. AA
                    #      0
                    Xiaomi Mi Robot STYJ02YM aspirapolvere e lavapavimenti c.mi.com/thread-2467002-1-0.html
                    reply   
                    1. AA
                      (edited})
                      #      0
                      I especially criticize the responses to comments. The article should be updated, as this product is now becoming popular! Did you know that Xiaomi had commissioned Viomi to build a new Robot? Just read.
                      A tip: if you have STYJ02 you can make an exact, updated review, since from August the product has already received 2 new firmware, Viomi V2 and V2 Pro, just 1. People must be properly informed.
                      reply   
                      1. Natalie Red
                        #      0
                        Thank you for pointing out my mistakes about the product. Our reader asks if the Viomi V2 Pro and Xiaomi have the same accessories. Can they be interchangeable (the filter, containers, and cleaning brush)?
                        reply   
                        1. AA
                          (edited})
                          #      0
                          Yes, and some online stores explain it. I used the mixed can of Mija on Viomi recognized her; I installed the 550ml tank of Viomi on Mijia and the robot is set automatically in Mop mode. There are some differences, but they mainly concern graphics and programming: Viomi does not choose the area to be cleaned, Mijia yes; Viomi has a more limited main menu, more complete Mijia, for example you can check suction power and quantity of water on the same screen. Viomi speaks English, Mijia only Chinese for now. But the structure is practically identical.
                          reply   
                      2. Spar
                        #      +1
                        Which are the difference between Viomi V2 Pro and Xiaomi Mijia STYJ02YM?
                        They have the almost the same characteristics?
                        reply   
                        1. Natalie Red
                          #      0
                          As I mentioned in the comment section earlier, these are different companies even though Xiaomi is related to the Viomi's robots, customer support, firmware and software is different. This may cause issues with updates and customer help if you need to get one.

                          As for the product itself, they are very similar yet a bit different anyway:

                          1. No multifloor map support. The Xiaomi stores one map only while the Viomi stores up to three maps. Useful for those who live in a multi-floor house or want to save a few maps with different no-go zones, for example, to keep the robot of carpets in mopping mode.
                          2. Not washable filter in the Xiaomi. I am not sure about this one, I only know the Viomi's filter can be washed with water, I have not tested the Xiaomi myself so I don't know about the type of filter inside. A washable filter meant to last longer.
                          3. Two vs. three containers in the box. The Viomi comes with three containers in the package: water tank, dustbox and 2-in-1 container for water and dust if you want it to vacuum and mop at once. The Xiaomi has two containers in the box: dustbox and 2-in-1 container. If you have a big area to mop, you'll need to refill the Xiaomi's container a few times during mopping.
                          4. Accessories. The Xiaomi spare accessories are widely sold, so far I don't know where you can find additional tools to the Viomi V2/V2 Pro.

                          It might be a bit confusing for many people to see the difference between the two which is understandable. Anyway, hope that helps you to understand the difference between the two.

                          Feel free to comment if you have questions :)
                          reply   
                          1. Spar
                            #      0
                            Do both robot vaccum cleaners use the same accessories?
                            All accessories they look the same (filter,watertank, dustbox, 2-in-1 container), exept from the brush and the roller have different colour.
                            reply   
                            1. AA
                              #      0
                              In my opinion the most important thing is to explain the difference between Viomi V2 and Viomi V2 Pro. Can you show me images of the menu to eliminate any doubt on the multi map?
                              reply   
                              1. Spar
                                #      +1
                                The Pro version can sweep and mop in the same time.
                                reply   
                                1. Natalie Red
                                  (edited})
                                  #      0
                                  You mean multi-map of the Viomi V2 Pro? I've seen it on Gearbest, it says the Viomi Pro supports multi-floor management on the screenshot. And also, the geekmaxi website claims the same: «Additionally, it can store several floors map to improve cleaning efficiency.» Now I am not sure about the multimap support. Does it or does not store more than one map?
                                  reply   
                                  1. AA
                                    #      0
                                    reply   
                                2. AA
                                  #      0
                                  The Internet is full of sites selling accessories for Viomi…
                                  reply   
                                  1. Spar
                                    #      +2
                                    The accessories for Xiaomi are cheaper from Viomi. So, if Viomi's robot vacuumm cleaners use the same accessories, you can use Xiaomi's accessories.
                                    reply   
                              2. AA
                                (edited})
                                #      +2
                                to conclude my comments I want to show you the real time to install the mop on Mijia and Viomi. In some videos it seems more difficult… but it's faster than Roborock.
                                www.dropbox.com/s/y2g1efzyk2ju98v/20191107_233950.mp4?dl=0
                                reply   
                                1. Veni
                                  #      0
                                  Hola a todos. Tengo en mi casa el viomi v2. No el v2 pro. Pregunta. Si compro el tanque 2 en 1 mi robot aspirara y fregara al mismo tiempo?
                                  Pregunta 2: el xiaomi v2 es igual al viomi v2 pro?
                                  Por los comentarios anteriores se deduce que utilizan los mismos tanques y salvo el sofware y la marca parecen identicos.
                                  reply   

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