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Xiaomi Robot Vacuum X20 Max review: one-minute review
The Xiaomi Robot Vacuum X20 Max seems like a slam dunk in the robot vacuum space. Positioned right in between the budget and upper mid range sections of the market, it delivers strong vacuum and mopping performance that make it capable of tackling a wide variety of messes in your home.
With LiDAR technology, its mapping is excellent and the robot vacuum does a great job of navigating unexpected obstacles that it might encounter during a clean. The design isn’t the most exciting, though it still has a good range of features like an extendable mop arm and automatic carpet detection.
The dock is large, which might make it tricky to fit into smaller homes, but it’s pretty capable as well, with hot water washing and air drying capabilities to keep the mop pads clean between uses.
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It’s all underpinned by a competent app that’s easy to use and offers key functions such as being able to schedule cleans, restricting the robot vacuum to certain rooms, and allowing you to customize the vacuuming power and amount of water used by the mop.
The elephant in the room is that my unit developed a fault after a year of testing, occasionally spilling water during a mop pad clean. It’s unfortunate and, even though it doesn’t seem widespread, makes this model difficult to recommend unreservedly.
Xiaomi Robot Vacuum X20 Max review: price, range & availability
- List price $999.99 / £499.99 / AU$1,199
- Launched late 2024
- No longer available in Australia
- Limited stock in the US
The Xiaomi Robot Vacuum X20 Max has a list price of $999.99 / £499.99 / AU$1,199, and is readily available via the brand’s website in the UK. It often receives discounts too, taking the price down by £100 or so around major sales events. At this price it sits neatly between the budget and upper mid range price brackets, coming in much more expensive than under $300 / £300 / AU$500 favorites like the Roborock Q7 M5 but cheaper than the likes of the Eufy X10 Pro Omni, which goes for $799.99 / £799 / AU$1,699.95.
That latter model is a good point of comparison here, as it also features mop and similar LiDAR sensor setup. With this in mind, the Xiaomi Robot Vacuum X20 Max is very solid value – especially if you get it at that reduced price point. Accessories like replacement brushes, dust bags, and mop pads are all available via the Xiaomi website at pretty reasonable prices too.
Unfortunately, this model seems a lot harder to come by in the US. You can find it on Amazon, but it goes for an eye-watering $999.99 and stock appears limited. At this price it’s significantly worse value and you would be better off spending less on an alternative. Its list price is AU$1,199 in Australia, but it appears to no longer be available either through Xiaomi’s own store, or Amazon.
- Value for money score: 3/5
Xiaomi Robot Vacuum X20 Max specs
|
Suction |
8,000Pa |
|
Mopping |
Yes |
|
Mop type |
Dual rotating discs |
|
Robot size (W x D) |
13.78 x 3.82 inches / 350 x 97mm |
|
Robot height |
~3.82 inches / ~97mm |
|
Dock dimensions (W x D x H) |
13.39 x 16.54 x 22.17 inches / 340 x 420 x 563mm |
|
Dust bin volume (onboard) |
15.22oz / 450ml |
|
Water tank volume (onboard) |
Not stated |
|
Dust bin volume (base) |
84.5oz / 2.5l |
|
Water tank volume (base) |
135.3oz / 4l |
|
Self-empty dust |
Yes |
|
Self-empty / refill water |
Yes |
|
Mop pad cleaning: |
Yes |
|
Wi-Fi control |
Yes |
Xiaomi Robot Vacuum X20 Max: design
- Raised LiDAR puck
- Extendable mop arm
The Xiaomi Robot Vacuum X20 Max isn’t pushing any boundaries when it comes to its overall design, but honestly that’s not such a bad thing.
It looks like your average robot vacuum, which is to say a big plastic disc with a chunky bumper at the front and a whole host of sensors. The most prominent of these is a big LiDAR sensor that sits in a little raised puck on the top, though there are others designed to spot obstacles or prevent the vacuum from falling off ledges.
Despite the basic look, the Xiaomi Robot Vacuum X20 Max has a bunch of useful features including two mop pads, one of which can be extended on a little arm for edge cleaning. The Xiaomi Robot Vacuum X20 Max is also capable of detecting which kind of surface it’s on, raising the mop pads when it goes over carpet to prevent any accidental stains.
Coming in at13.39 x 16.54 x 22.17 inches / 340 x 420 x 563mm, the docking station that it comes with is absolutely ginormous which could make it awkward to fit in smaller homes, but there are some good reasons for this size. Firstly, you’re getting a large 135.3oz / 4l clean water tank (removed for filling by simply popping up the lid on top of the dock) and a slightly smaller but still sizable 128.5oz / 3.8l tank for dirty water storage.
Xiaomi says that this is more than enough water to clean 2,152.8 square feet / 200 square meters on a single fill, and while my testing area was considerably smaller, I can say that it didn’t need refilling across multiple cleans.
The dock also has a hot water system to help wash both mop pads at 131F / 55C – a temperature that Xiaomi claims reduces odours more effectively. It dries the mop pads using hot air, a process that takes a few hours and produces a small level of sound akin to a desk fan.
There’s also a generous 84.5oz / 2.5l dust bag, which Xiaomi says only needs emptying once every 75 days in a three-person household with one pet. This seems like a very generous estimate to me, and your mileage will vary depending on your specific level of household mess. This bag size is on par with much of the competition, such as the aforementioned Eufy X10 Pro Omni, so you can expect similar performance to those models.
One feature that I particularly appreciate is the ability to remove parts of the dock for cleaning, including the little tray where the vacuum sits while charging. This isn’t something that you will need to do regularly, but my previous robot vacuum tracked a decent layer of grime in its dock over the years and was comparatively pretty tricky to clean.
My only real complaint from a design standpoint is the vacuum’s incessant need to narrate what it’s doing. By default it frequently declares ‘start to dry the mop pad’ and similar phrases in a loud, annoying voice. It’s disruptive, though mercifully can be turned off in the app.
Xiaomi Robot Vacuum X20 Max review: performance
- Good navigation
- Deals with multiple surfaces well
- Base station pump developed issues
I’ve been using the Xiaomi Robot Vacuum X20 Max for a year now, and can say that it handles most daily cleaning tasks well. Its navigation capabilities are excellent and map that it generated of my cleaning area was spot on. I have the base station in the corner of an L-shape hallway and the robot never struggles to find it, even when it’s been cleaning the handful of adjoining rooms.
Setting room boundaries works excellently too — if you want to restrict cleaning to a specific defined area, the vacuum won’t stray beyond it. It also deals with unexpected obstacles like closed doors or moved furniture well, bumping into them once or twice and then adapting its path smartly. You don’t need to worry about multiple surfaces, either. Every time I spot the vacuum going over the rug in the middle of a mop cycle, the pads are automatically raised as it detects the soft surface to prevent damage.
The vacuum picks up small debris and cleans up small spills with no sweat, and for a more intensive task I doused my kitchen floor with oats, cereal crumbs, flour, ketchup, and pretty much anything else that I could find in the cupboard.
How did the Xiaomi Robot Vacuum X20 Max fare? I sent it out on the most intensive possible cleaning mode and it made a commendable dent in the mess. The oats, crumbs, and flour were masterfully hoovered up with the exception of a few survivors in the hardest to reach corners of the room.
The ketchup was more of a challenge, and at first I was pretty worried that it wouldn’t be able to overcome it: the mop pads smeared it in a thin layer over the middle of the floor at first but, sure enough, after multiple visits to the base station in order to clean itself and to refill its water tanks, it was all gone after a few runs. I did spot some red residue in the grouting between tiles, but this took just a few seconds for me to wipe up.
It’s the kind of performance you would want from a mid-range robot vacuum. It’s not a total replacement for doing the cleaning, but it does decrease the need for big cleans.
That said, my unit has developed a major issue over long-term testing. Sometimes when the vacuum cleans its own mop pads (either at the start or during a cleaning task) the motor that’s meant to suck away all the dirty water doesn’t kick in. This means that dirty water starts to accumulate in the base station, eventually overflowing and spilling out onto the floor.
It’s frustrating (and pretty gross), and I’m struggling to resolve the issue by cleaning the water sensors, fiddling with the base station, and so on. Anecdotally, a family member bought Xiaomi Robot Vacuum X20 Max a few weeks after seeing my one, and it developed a similar fault within just a couple of months. It was, after some back and forth, repaired by Xiaomi.
Looking online, it doesn’t seem to be a widespread problem, though I’ve still been able to find at least a few others who report the same thing. Users on Facebook and Reddit also seem to have had luck getting their vacuums replaced via Xiaomi’s support service, though I suspect I can’t go through this route with a review sample.
For this reason, I would recommend buying from Xiaomi directly rather than through reseller if you do chose to pick one up, as you otherwise will likely have more trouble getting support if issues do arise.
Xiaomi Robot Vacuum X20 Max review: app
- Easy to use
- Scheduling features
- Different suction levels
The Xiaomi Robot Vacuum X20 is compatible with the Xiaomi Home app. It’s easy to use and has plenty of features, including the ability to view the map generated by the robot, and its location real time. This is on top of the option to start cleans in specific rooms, schedule cleans, or clean the mop pads.
You can view the battery level, and change cleaning modes. These include basic vacuuming, mopping, vacuuming and mopping, or vacuuming before mopping. You can increase the water output too, with three levels to choose between, but bear in mind that this will increase how quickly you will need to refill everything.
I didn’t encounter any bugs within the app, and it remained quick and responsive during my year of testing. The fact that you have to set up a Mi account is a bit annoying, but otherwise it offers everything you could from robot vacuum companion software.
Should you buy the Xiaomi Robot Vacuum X20 Max?
|
Attribute |
Notes |
Score |
|---|---|---|
|
Performance |
Good at vacuuming up debris and cleaning up small spills… when it works as intended. |
2.5/5 |
|
Design |
The Xiaomi Robot Vacuum X20 Max doesn’t defy any design conventions, but it’s perfectly functional and packed with features. |
4/5 |
|
App |
An easy to use app that offers every feature you could reasonably expect. |
4.5/5 |
|
Value |
Decently positioned in the UK and regularly on sale, but far too expensive if you’re in the US and no longer sold in Australia.. |
3/5 |
Buy it if…
Don’t buy it if…
Xiaomi Robot Vacuum X20 Max review: alternatives to consider
| Row 0 – Cell 0 |
Xiaomi Robot Vacuum X20 Max |
Eufy X10 Pro Omni |
Eufy Omni S1 Pro |
|
Suction: |
8,000Pa |
8,000Pa |
8,000Pa |
|
Mopping: |
Yes |
Yes |
Yes |
|
Mop type: |
Dual rotating discs |
Dual rotating discs |
Spinning roller |
|
Robot size (W x D): |
350×97mm |
12.9 x 13.9″ / 32.7 x 35.3cm |
12.8 x 13.7″ / 32.5 x 34.8cm |
|
Robot height: |
~97mm |
4.5″ / 11.4cm |
3.8″ / 9.7cm |
|
Dock dimensions (W x D x H): |
340×420×563mm |
14.4 x 18.9 x 18.1″ / 36.6 x 48 x 46cm |
15.8 x 18.4 x 26.4″ / 40.1 x 46.7 x 67.1cm |
|
Dust bin volume (onboard): |
450ml |
Not stated |
0.25L |
|
Water tank volume (onboard): |
Not stated |
Not stated |
0.24L |
|
Dust bin volume (base): |
2.5L |
2.5L |
2.5L |
|
Water tank volume (base): |
4L |
Not stated |
Not stated |
|
Self-empty dust: |
Yes |
Yes |
Yes |
|
Self-empty / refill water: |
Yes |
Yes |
Yes |
|
Mop pad cleaning: |
Yes |
Yes |
Yes |
|
Wi-Fi control: |
Yes |
Yes |
Yes |
How I tested the Xiaomi Robot Vacuum X20 Max
I tested the Xiaomi Robot Vacuum X20 Max in my home for over a year, using it to clean a hallway and two large rooms on a weekly basis. It cleaned a wide variety of messes in that time on a number of different surfaces, namely carpet and tiled flooring. I fully utilized the companion app in order to evaluate its performance and compared the overall experience to other robot vacuums that I own.
Read more about how we test
First reviewed August 2026
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dash.wood@futurenet.com (Dashiell Wood)
