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Xiaomi Mi Mix Smartphone Test

Xiaomi Mi Mix test - concept smartphone

Updated by Timo Altmeyer on February 16, 2022

The Xiaomi Mi Mix has shaken the smartphone market with its almost borderless design. With the most innovative smartphone of the past year, Xiaomi has shown that the company has been playing with the big players for a long time and that innovations that have been specially developed in the future can be expected in the future. In the test, we took a closer look at the smartphone.

Our rating

First impression - Xiaomi Mi Mix

You are also interested in the successors, the  Xiaomi Mi Mix 2  and the Xiaomi Mi Mix 2S? We also tested both devices! Simply click on the button to get to the respective test report. 

Xiaomi Mi Mix 2 review

To the Xiaomi Mi Mix 2S test

What's in the box

The innovative Xiaomi Mi Mix is ​​delivered in an inconspicuous, black cardboard box with only the words "MIX DESIGNED BY MI" emblazoned on it. But not only the smartphone is included, the scope of delivery also includes a leather back cover, a quick charger with type A plug, a USB type C cable, a SIM needle to open the SIM slot and a Chinese operating manual. 

Xiaomi Mi Mix Review Review - Scope of Delivery

Design and workmanship

When it comes to design, the Mi Mix is ​​unparalleled - you might think - but that's not entirely true. Just a few years ago, Sharp released similar concept smartphones with the Aquos Crystal and Aquos Xx models, which come very close to the design. The rimless Sharp models were unable to establish themselves and the devices were mainly intended for the Japanese market.

All-ceramic housing with advantages and disadvantages

Xiaomi Mi Mix Test Smartphone Display

The rimless design of the Xiaomi Mi Mix has received a far greater response. Not only is the front design surprising, the rest of the smartphone's casing is also a real eye-catcher. In collaboration with the French designer Philippe Starck, a smartphone case was created in which all of the components, including the frame and the control buttons, are made of ceramic. Above all, a higher scratch and break resistance are characteristics of ceramics. However, individual fall tests on YouTube show that ceramics are no “egg-laying woolly milk sow”. The frame in particular is prone to breakage.

Xiaomi Mi Mix Test Case Side

It is also often criticized that the smartphone is slippery in the hand. The slippery feeling is indeed understandable, as a major drawback you can not chalk it to the device. Smartphones with plastic backs are on the same level. Those who handle the device with care will have nothing to fear.

The susceptibility to fingerprints is far more annoying. After unpacking the smartphone and peeling off the protective film on the back, it took less than 5 seconds and the shiny back was covered with unsightly fingerprints. Of course, the enclosed case can help, but the beautiful ceramic case remains hidden.

Xiaomi Mi mix smartphone ceramic back

Connections and control buttons

On the underside there is a USB Type-C socket in the middle between the microphone and speaker grilles. A 3.5mm headphone jack is on the opposite side. The SIM card slot is located on the left side of the housing. Opposite are the power button and a volume rocker. The user interface is operated exclusively via the display! A configurable notification LED that shines in different colors is located in the middle below the display.

Processing of the smartphone and accessories

The build quality of the Xiaomi Mi Mix is ​​not to be criticized. The entire smartphone is clean and error-free processed. Also, the included accessories has no defects and delivers the usual Xiaomi processing quality.

Xiaomi Mi Mix smartphone review / review - unboxing

Display and acoustic system

The almost borderless, 6.4-inch display is particularly striking. Despite the very high display diagonal, the dimensions of the smartphone are no larger than those of a 5.5-inch iPhone 7 Plus. The Xiaomi Mi Mix achieves the display-to-housing ratio of around 85% by eliminating the entire upper area including the auricle. Xiaomi itself gives a value of 91.3 percent here, but this is not entirely correct. The transition from the display to the edge of the housing is about 2 mm at the top, left and right. The display is also rounded at the corners, which again saves a lot of space and looks damn good.

Because a smartphone without an auricle would be quite nonsensical, Xiaomi has developed a piezoelectric ceramic acoustic system in which the sound is transmitted purely through the housing. The entire housing of the Xiaomi Mi Mix becomes an "auricle".

The display itself has a resolution of 2.040 x 1.080 pixels, which corresponds to a rather unusual aspect ratio of 17: 9. If you now play video material in a 16: 9 ratio, you have unsightly black bars on the left and right. Nonetheless, the display is convincing. With a point density of 362 PPI, the display is razor-sharp. The color display looks lively and can be individually adjusted in the display settings. The maximum display brightness (500 cd / m²) cannot keep up with the Xiaomi Mi5S that we tested a few weeks ago, but it is still within the good average. The same applies to the viewing angle stability.

 Multitouch is supported with up to 10 simultaneous inputs. The touchscreen responded accurately and accurately throughout the test phase. Xiaomi is silent to what extent the display is protected by a branded display glass (Corning etc.). But even after more than two weeks of daily use without a screen protector, no scratches were noticeable on the display.


Like the recently released Xiaomi flagship models, the Mi Mix also uses a Qualcomm Snapdragon 821 processor. The currently fastest Qualcomm SoC available offers 4 Kyro cores that clock with up to 2.35GHz and ensure performance at the highest level. The memory of our copy of the text consists of a 4GB working memory and a 128GB internal memory. There is no provision for memory expansion. The Xiaomi Mi Mix is ​​also optionally available with 6GB of RAM and 256GB of internal storage.

In terms of performance, the device leaves little to be desired. Apps start without delay and even if the memory is “fully loaded” with apps started at the same time, there are no noticeable drops in performance. The Adreno 530 processor graphics of the SoC (System on Chip) can also show its strengths in graphically demanding games and shines with smooth gaming fun.

user interface

The Xiaomi Mi Mix uses MIUI 8 based on Android 6. An update to Android 7 Nougat is already being planned and will be released later this year.

Shop ROM vs. China-ROM

Anyone who buys a smartphone has either a so-called “shop ROM” or the official China ROM preinstalled. Unfortunately, a shop ROM was preinstalled on our test copy that we received from Gearbest. For all those who have hardly dealt with flashing a ROM, the shop ROM, compared to the China ROM, also offers a German voice output and has most of the Google services already preinstalled. Probably the biggest disadvantage of a shop ROM is the lack of an update option and the risk of malware. 


All Xiaomi smartphones are equipped with the in-house MIUI user interface. MIUI is far from a pure stock Android and not only offers a completely different look, but also numerous functions. MIUI does without an app drawer. Instead, all apps are stored on the home screen and can be managed in folders. The appearance can be changed again at will via its own theme store. Themes, backgrounds or fonts that have been downloaded from the store can be activated and changed at the push of a button. All the functions of MIUI 8 cannot be accommodated in this review. Overall, the Xiaomi user interface is above all one thing - diverse!


Now we come to the biggest criticism of this smartphone. At around € 700 you would expect a flagship smartphone with a decent main camera. However, a cheaper 16 megapixel OmniVision OV16880 image sensor with an f / 2.0 aperture was installed, which is also occasionally installed in much cheaper LeTV LeEco models.

main camera

The image and video quality of the main camera is correspondingly disappointing. In really very good lighting conditions, the main camera still produces quite suitable image recordings. The worse the lighting, the stronger the image noise and the overall blurring of the image. The dual LED flash helps with close-up shots, but it could shine a tad brighter. The autofocus of the Xiaomi Mi Mix failed in the test. Although the focus is quick, the smartphone is often wrong with the result. The camera can convince with its accurate color reproduction.

Video recordings are also no joy with the Mi Mix. The video resolutions range from SD to HD and Full HD to 4K. There is no electronic or even optical image stabilization. If you record a video with your smartphone, you get frustrated pretty quickly because of the poor autofocus. With active autofocus, a constant pulsing and refocusing becomes noticeable, which makes even the most cautious video recording unsightly. With manual autofocus, the constant refocusing becomes an ordeal, but the video recordings are quite impressive in good lighting conditions.

Front camera

The 5 megapixel front camera is located below the display. To use the smartphone must be turned upside down. The recording quality, both for picture and video is acceptable in good lighting conditions.

MIUI Camera App

The MIUI Camera app offers a variety of photo modes and photo effects and a manual recording mode, where you can adjust the white balance, the focus, the exposure and the ISO. In contrast to the fully automatic recording, you can use a bit of skill to get the best out of the camera. A nice gimmick is the facial recognition of the app, which allows you to determine the age and gender of the person in the picture. A very useful feature is the detection of QR codes. Overall, the app is well equipped and easy to use.


As a dual SIM smartphone, the Mi Mix can be equipped with two nano SIM cards. Both 2G, 3G and 4G network standards are supported. Xiaomi is common, but lacks the LTE band 20, which is coveted in this country, which can result in a waiver of LTE, especially in rural areas.


In terms of network quality, there is nothing to complain about with the Mi Mix. The connection to the cellular network is stable and no interference was noticeable during phone calls. What takes some getting used to, however, is the piezoelectric ceramic acoustic system. You can hear the conversation partner a little quieter, as if they were further away. Spoken sound doesn't sound quite as voluminous as through an auricle. Nevertheless, the quality of the call is sufficient to make pleasant phone calls. Conversely, the transmission quality of the smartphone's 3 microphones is excellent.

Wi-Fi and Bluetooth

In addition to the common WLAN standards, the Xiaomi Mi Mix is ​​also compatible with Dual Band WiFi (802.11ac). Bluetooth is supported up to version 4.2. Constant and interference-free wireless transmission is possible with both WiFi and Bluetooth.

NFC, GPS and sensors

The GPS module does an excellent job. A GPS fix takes place within a few seconds and the location inside the building was accurate to within 10 meters. A test navigation went first class and the integrated e-compass also works accurately. In addition to GPS, GLONASS and Beidou are also supported. A location via the European "Galileo" satellite system would be possible with the Qualcomm Snapdragon 821 SoC, but requires an update from Xiaomi.

 NFC works as it should. The existing sensors amount to a brightness sensor, an acceleration sensor, a gyroscope, the already mentioned e-compass, a barometer and a proximity sensor. Because of the rimless design, no infrared proximity sensor was used, but an ultrasonic proximity sensor. The difference is not noticeable in everyday use.

Fingerprint scanner

The fingerprint scanner of the Xiaomi Mi Mix is ​​located on the back and below the main camera. In practice, the fingerprint scanner shines with a high recognition rate and very quick unlocking of the smartphone. The number of finger profiles is limited to a maximum of 5.


 The speaker sounds average. Volume and bass are searched in vain, which creates a flat sound. The maximum volume is sufficient. There is no scratching at maximum volume.

The playback quality via the 3.5mm headphone connection is more promising. Music is played back very clearly and free of noise. The equalizer integrated in MIUI 8, which can be individually adjusted, is also interesting. MIUI 8 even offers different sound profiles for the numerous Xiaomi in-ears, which can be activated at the push of a button.


A 4.400 mAh battery is built into the Xiaomi Mi Mix, which at first glance appears to be very large. Because of the very large display and the powerful processor, the battery life is only slightly longer than that of other flagship models. If you use your smartphone essentially for WhatsApp or some web browsing, you will achieve runtimes of around 2 days with the Mi Mix. With conventional use, the running time is 1 ½ days. With intensive use, the battery lasted about a day.

With Quick Charge 3.0, the smartphone is charged within a very short time. A full charge takes between 1 ¾ and 2 hours. Half a charge of the battery only takes 45 minutes! There is no unusually high heat generation during charging.

Xiaomi Mi Mix Smartphone Test

Xiaomi Mi Mix


Tr-Bezel-Less design
Very good workmanship
Neat display
High-performance hardware
High storage capacity
Innovative technologies
Fast fingerprint scanner
Strong signal GPS
Good battery life and Quick Charge 3.0


Main camera below average
Front camera position
No LTE band 20
No memory expansion
Weak speaker
Vulnerable to fingerprints
Slippery case
High price


While writing this review, the iPhone just got 10 years old. If you think back 10 years, today's smartphones have hardly changed in terms of design. Well, the displays got bigger, the edges narrower and the cases thinner. Innovative concept smartphones have been "leaked" many times over the years, but mostly it was with render photos that were never implemented.

With the Xiaomi Mi Mix, the Chinese manufacturer dared to present a real concept smartphone to the public and actually market it. Although the Mi Mix is ​​not perfect in all areas and in some areas - such as the camera - far from a flagship smartphone, Xiaomi challenges other manufacturers outright, also driving the smartphone market. Innovative technologies such as an Edgeless display, the piezoelectric acoustic system or the ultrasonic proximity sensor provide incentives and as a technology geek - but also as a conventional consumer - you can only be curious what Xiaomi will present in the year 2017!

Timo Altmeyer avatar

Timo is the founder of and a real technology expert. From smartphones to e-bikes, from home cinema to smart homes, he always has his finger on the pulse of the latest trends.



  1. Steve

    13. January 2017 10 to: 56

    Successful and honest reviews! It's a shame that the camera isn't that great. The missing volume 20 was to be expected. You are no longer on the preinstalled firmware? Is it also possible for beginners to reinstall such a Xiaomi smartphone?

    • Timo admin

      13. January 2017 13 to: 25

      Thanks very much :). The camera is really far from a flagship smartphone. I have no idea what Xiaomi was thinking. The fact that LTE band 20 is missing doesn't really bother me that much, because I usually receive HSDPA as well.

      Regarding the ROM: As soon as I receive a Xiaomi smartphone with a shop ROM, I immediately transfer it. I once left the ROM on a Redmi smartphone and after a week I was literally littered with ads that covered the main screen. Since then, I always first unlock the bootloader and then flash a Xiaomi EU ROM or the official Global ROM. As a beginner it could be quite difficult. However, if you stick to the individual guides available on the web, you should be able to handle them even as a beginner. The most important thing is always to unlock the bootloader first!

  2. Beat

    13. January 2017 19 to: 04

    Now the selfie camera and a display without borders. Maybe Xiaomi will publish something like this this year: D. Otherwise a really, really cool device.

    • Timo admin

      14. January 2017 11 to: 00

      Just. You can definitely do without the front camera. I'm also curious to see what Xiaomi will come up with in 2017 and whether other manufacturers will also be more willing to experiment.

  3. Elmo

    16. January 2017 21 to: 26

    Do I need an extra Quick Charge charger for the smartphone or can I use any smartphone charger?

    • Timo admin

      16. January 2017 22 to: 26

      You can of course charge the smartphone with any smartphone charger. However, if you want to use the Quick Charge 3.0 function, you also need a corresponding charger that supports Quick Charge 3.0. I myself use the original Chinese charger with a suitable adapter.

  4. MiFan

    22. January 2017 12 to: 30

    Thanks for the detailed review! Because of the large display, I wonder whether the Mi Mix can still be operated with one hand without any problems. Do you also know whether Galileo has already been activated on the phone? Or is there a ROM that you can use to activate it yourself?

    • Timo admin

      22. January 2017 13 to: 07

      Difficult, I mostly use the Mi Mix with both hands. When I hold the smartphone in my hand, my thumb is not enough to get to the outer edge of the display.

      There is currently no information about the Galileo navigation system, let alone an update from Xiaomi. The ROMs that have been released so far are also minor modifications of MIUI 8. It may take a while until Lineage OS (CyanogenMod) is available for the device because the source code for the Mi Mix is ​​not yet public. I myself have currently flashed the Xiaomi EU ROM, which runs stably and hardly contains any errors.

      • MiFan

        26. January 2017 17 to: 53

        Thanks, then I'll be patient with the smartphone after all. I saw that the Mi Mix is ​​now also available in white. Let's see if I can get the white model, but it should be the mix. Regards

  5. k3ndrik

    24. January 2017 12 to: 15

    Hi, I also bought the Mi Mix and I also have this dealer ROM on it. I know a bit about flashing and my Mi account is also activated for the bootloader. Which ROM can you currently recommend?

    • Timo admin

      25. January 2017 10 to: 41

      I myself have a ROM on my smartphone. The disadvantage is the lack of OTA updates, which is why you always have to install the updates manually. The advantage is the good translation and the lack of bloatware, because all ROMs are openly accessible. If you want an original MIUI with OTA updates, you currently have no choice but to flash the MIUI China ROM. There is currently no global stable / dev for the XIaomi Mi Mix.

      • k3ndrik

        27. January 2017 14 to: 19

        Me again. I now have the China ROM on the phone and am happy with it. I was able to install the Google Apps afterwards without any problems. No errors, no crashes and everything runs very stable in contrast to the ROM that was pre-installed. Possibly I will install the ROM or wait for the Global ROM right away.

  6. TheErik

    29. January 2017 16 to: 33

    Hey, have you ever tested other camera applications with the mix? I would be interested in whether OpenCamera recognizes the Mix's Camera2 API or whether the build.prop still has to be adjusted. And please test if FreeDcam runs on it. I've had the best experiences with it so far! Otherwise good review. Keep it up!

    • Timo admin

      29. January 2017 18 to: 33

      Hello and thank you for the hint. The Camera2 API is not activated by default, but can be activated by adding the following line " = 1" to the build.prop (/ system /). The Camera2 API is then also recognized in the Manual Camera Compatibility Test. The API can also be switched on in OpenCamera and FreeDCam can also be run (you can get it here: )

      I will compare the apps with the MIUI camera app as soon as possible and see what image quality can be achieved. I then add the update to the test report.

  7. PM

    18. February 2017 10 to: 42

    Hello, if I buy the smartphone, will I also have a guarantee? Or how does it work with these chinaphones?

    • Timo admin

      18. February 2017 11 to: 03

      Hi, the guarantee always depends on the shop you order from. Most of the major online shops in China offer a 12 month warranty with free repairs. However, you will then have to send the smartphone back to China at your own expense. I haven't had any experience with it myself.

      • PM

        18. February 2017 11 to: 08

        Fine, thanks for the fast response. I thought there was a catch. I'll order it anyway. Will go wrong, hey.

        • Timo admin

          18. February 2017 11 to: 13

          Don't worry, I've already used a number of China smartphones and most of my friends also have one. So far, nobody has had any problems, let alone had to send the device to China. With the Mi Mix that's a nice thing, because it costs a lot and you probably can't repair a lot yourself, but Xiaomi smartphones are of good quality and don't give up the ghost so easily. Have fun with the Mi Mix. It's a great smartphone that I'm currently using :).

  8. ppp

    14. June 2017 17 to: 17

    Hi, is there already a MIUI 8 based on Android N for the Mi Mix? Good review by the way!

    • Timo admin

      16. June 2017 10 to: 49

      Hi, there is still no official stable based on Android N. I would recommend you to flash the Xiaomi EU weekly. It is based on N :).

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Xiaomi Mi Mix


 Processor and memory 
CPU: Qualcomm Snapdragon 821 @2.35 GHz
GPU: Adreno 530
RAM: 4GB / 6GB
Internal memory: 128GB / 256GB
Memory extension: no

Display diagonal: 6.4 inches
Display resolution: 2048 x 1080 pixels
Display Type: IPS
Multitouch: 10 fingers

Main Camera: 16 Megapixel OmniVision OV16880
* Aperture f / 2.0
* Autofocus
* Dual LED flash
Front camera: 5 megapixel

WiFi: 802.11a / b / g / n / ac
Bluetooth: 4.2
Navigation: GPS / GLONASS / Beidou
NFC: Yes

* Brightness sensor
* Accelerometer
* E-compass,
* Proximity Sensor

SIM Type: Nano
2G: GSM B2/B3/B5/B8
3G: WCDMA B1/B2/B5/B8
4G: FDD-LTE: B1/B2/B3/B4/B5/B7/B8

Capacity: 4.400 mAh
Quick batch: V3.0

Fingerprint scanner: Yes
Operating System: MIUI 8 (Android 6)
Size: 15.80 x 8.19 x 0.79 cm
Weight: 211g

What's in the box

1x Xiaomi Mi Mix
1x USB Type-C cable
1x Charger (Type A Plug)
1x Leather Back Case
1x SIM needle
1x user manual