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Design
Features
Key features
  • Display features icon 6.28" AMOLED  1080 x 2400 px
    Aspect ratio: 20:9
  • Phone’s dimensions and size icon 152.70 x 69.90 x 8.16 mm  176.00 g
  • Basic cameras data icon 50 Mpx  Front: 32 Mpx
  • Battery data icon Li-Ion 4500 mAh 
  • RAM memory icon 8 GB, 12 GB 
  • Internal memory icon 128 GB, 256 GB 
  • Processor model icon Qualcomm Snapdragon 870 SM8250 
  • Announcement date – calendar icon 4Q 2021
    (4 years 8 months ago) 
  • Phone thickness and battery icon 551.47  C2T  Battery capacity to thickness ratio
  • Screen-to-body ratio icon 89.20%  Screen-to-body ratio
Selected variant:
back icon
Description

Released in the fourth quarter of 2021, this smartphone features a 6.28-inch AMOLED display with Full HD+ resolution and a 120 Hz refresh rate. The screen is protected by Gorilla Glass Victus, supports HDR10+ and Dolby Vision, and has earned a DisplayMate A+ rating. Audio is powered by harman/kardon stereo speakers with Dolby Atmos technology. At its heart is the Snapdragon 870 processor running Android 12, available in 8/128 GB or 12/256 GB configurations. It supports 5G connectivity. The 4500 mAh battery can be recharged using a 67 W fast charger. The main camera boasts a 50 MP resolution with OIS, complemented by a 5 MP macro lens and a 13 MP ultra-wide lens with a 123-degree field of view. On the front, there is a 32 MP portrait camera. The device records video at a maximum resolution of 8K at 24 frames per second. It is available in blue, purple, and grey.

Brand Xiaomi
XiaomiSmartphones
Model name 12X
Other names 2112123AG
Announced 4Q 2021
(4 years 8 months ago)
Type Touch
Dimensions 152.70 x 69.90 x 8.16 mm
Weight 176.00 g Buy case icon_info
Colour Available in 3 variants:
Display Color / AMOLED
1,07 billions colors, 120 Hz
1080 x 2400 px (6.28") 419 ppi
∼89.2% screen-to-body ratio
Display protection Corning Gorilla Glass Victus Buy screen protector icon_info
Talk time (max.) No data
Stand-by (max.) No data
Standard battery Li-Ion 4500 mAh Buy powerbank icon_info
Quick battery charging Quick Charge 4
Charger included in the package No data icon_info
Wireless battery charging No
Internal memory Available in 2 variants:
RAM memory Available in 2 variants:
Memory cards No
Operating system Android 11
Interface MIUI 13
Processor
Qualcomm Snapdragon 870 SM8250
Processor clock: 3.20 GHz
Number of cores: 8
GPU: Adreno 650
Standards GSM, UMTS, LTE, 5G
read more
Touchscreen Yes
DualSIM Yes
SIM card(s) nanoSIM, nanoSIM
DualSIM mode dual standby
Hybrid DualSIM No
EAN Available in 6 variants:
MPN Available in 4 variants:
ADDITIONAL INFORMATION

ADDITIONAL INFORMATION

  • LPDDR5, UFS 3.1. 67W wired charging. Alternative recording modes: 4k 30/60fps; slow motion 1080p 120/240/960fps; slow motion 720p 120/240/960fps. Front camera supports 120 fps slow motion recording. Touch sampling rate 480Hz. Max brightness 1100 nits. HDR10+, Dolby Vision. Plain leather version thickness is 8.66mm.

PICTURES FROM THIS PHONE

PICTURES FROM THIS PHONE

CAMERAS - BACK

CAMERAS - BACK

First camera
  • Camera type
    Standard
  • Photo sensor model
    Sony IMX766
  • Photo matrix
    50 Mpx
  • Sensor size
    1/1,56
  • Pixel size
    1 µm
  • Digital zoom
    Yes
  • Focal length
    24 mm
  • Flash
    2x LED
  • Dual-colour LED flash
    1+1
  • Video resolution
    7680x4320
  • Video formats
    H.264, H.265, MPEG4 - 24 fps
  • Additional
    AF, OIS, f/1.88
Second camera
  • Camera type
    Macro
  • Photo matrix
    5 Mpx
  • Digital zoom
    Yes
  • Focal length
    50 mm
  • Flash
    2x LED
  • Dual-colour LED flash
    1+1
  • Additional
    FF
Third camera
  • Camera type
    Wide-angle
  • Photo matrix
    13 Mpx
  • Digital zoom
    Yes
  • Field of view
    123 °
  • Focal length
    12 mm
  • Flash
    2x LED
  • Dual-colour LED flash
    1+1
  • Additional
    FF, f/2.4
CAMERAS - FRONT

CAMERAS - FRONT

First camera
  • Camera type
    Portrait
  • Photo matrix
    32 Mpx
  • Pixel size
    0,7 µm
  • Digital zoom
    Yes
  • Field of view
    80 °
  • Flash
    No
  • Video formats
    H.264, H.265, MPEG4
  • Additional
    FF, f/2.45
SENSORS

SENSORS

  • Accelerometer
    Yes
  • Proximity
    Yes
  • Light
    Yes
  • Magnetometer
    Yes
  • Gyroscope
    Yes
  • Barometer
    No
  • Altimeter
    No
  • Gravity
    Yes
  • Hall-effect
    No
  • Iris scanner
    No
  • Fingerprint scanner
    No
  • Thermometer
    No
  • Hygrometer
    No
DATA TRANSFER

DATA TRANSFER

  • HSDPA
    42.20 Mbit/s
  • HSUPA
    11.52 Mbit/s
  • HSPA
    Yes
  • HSPA+
    Yes
  • LTE DL
    Yes
  • LTE UP
    Yes
  • GPRS
    Yes
  • EDGE
    Yes
  • Bluetooth
    Yes v5.1
  • A2DP Profile
    Yes
  • WiFi
    Yes v802.11 a/b/g/n/ac/ax
    read more
  • Miracast
    Yes
  • DLNA
    No
  • Infrared
    Yes
  • USB
    Yes v2.0 OTG
           Type-C
    Buy adapter icon_info
  • GPS module
    Yes
  • A-GPS
    Yes
  • GLONASS support
    Yes
  • Beidou
    Yes
  • Galileo
    Yes
  • QZSS support
    Yes
  • NavIC support
    Yes
  • NFC
    Yes
COMMUNICATION AND MESSAGING

COMMUNICATION AND MESSAGING

  • Call waiting
    Yes
  • Conferency
    Yes
  • Call forwarding
    Yes
  • Push To Talk
    No
  • Instant Messenger
    Yes
  • SMS
    Yes
  • SMS Memory
    No data
  • MMS
    Yes
  • Dictionary
    Yes T9
  • e-mail client
    Yes
  • e-mail protocols
    POP3, IMAP4, SMTP
  • RSS Reader
    Yes
MULTIMEDIA

MULTIMEDIA

  • Radio
    No data
  • MP3
    Yes
  • Stereo speakers
    2 speakers
  • Audio Jack
    No Buy headphones icon_info
  • HD Voice
    Yes
  • Sound formats
    AAC, AAC+, AMR, APE, AWB, FLAC, MID, OGG, WAV, WMA, eAAC+
  • Java
    Yes ART
  • Videophone
    No data
PIM AND ADDITIONAL FUNCTIONS

PIM AND ADDITIONAL FUNCTIONS

  • Watch
    Yes
  • Stopwatch
    Yes
  • Alarm
    Yes
  • Calculator
    Yes
  • Organizer
    Yes
  • Calendar
    Yes
  • Flight mode
    Yes
  • Data and fax
    Yes
  • Voice dial
    Yes
  • Speakerphone
    Yes
  • Recorder
    Yes
  • Vibrations
    Yes
POPULARITY CHART

POPULARITY CHART

    Popularity chart of Xiaomi 12X
    Popularity chart of
    Xiaomi 12X

Your rating

7,30
icon_info
General
7,30
Design
7,00
Features
7,60
Ratings: 11 |  Visits: 37947 |  Popularity: 0,01%
Ratings: 11 |  Visits: 37947 |  Popularity: 0,01%
A D V E R T I S E M E N T
We do our best to present the proper and current information on this page. However, in case of finding any error in the data above please

FAQ - FREQUENTLY ASKED QUESTIONS

Xiaomi 12X doesn’t have the option for inductive charging. The only way to charge the phone is with a conventional charger. Phones with inductive charging can be found using our advanced search.
Unfortunately, Xiaomi 12X has been designed without a jack socket. The lack of a jack socket means you will need to use Bluetooth headphones. Alternatively, you can purchase a specialised adapter to connect wired headphones to the device. Phones with a jack socket can be found in our advanced search.
14 user reviews opinie nie sa weryfikowane
Positive 0%
Neutral 0%
Negative 0%
Positive opinion

bigpagman

I do not know what I am reading here? I have had the phone for a month and it does not overheat in games, nor does the performance drop in the game after using the entire battery; yes, the back heats up slightly because it is normal, but it is nothing special. Ringtones can be changed without any problem in the settings. Besides, it takes quite good photos, the battery lasts as 4500mHa should, the display is very beautiful and the phone itself is compact; I can recommend it without any problem to anyone who has previously owned a Xiaomi.


A D V E R T I S E M E N T
Positive opinion

Hipek

After more than a decade with Sony flagships and a long search for a new slim partner, I decided on the Xiaomi 12X three weeks ago. The phone meets all my expectations and requirements: a slim profile, efficiency and multitasking, a good camera, and a decent battery. Aside from the profile, perhaps, everything else is beyond expectations! In a case, this phone is still narrow, but not as much as I would have dreamed. The battery is strong, and the charging is even stronger – a moment of inattention and I already have 100%. For a photography amateur, all four cameras meet every expectation, and the two stereo speakers sound very impressive for their size. The 120Hz display also makes an impression. System personalization is at a high level, and working on this device is more pleasant for me than ever. It does not slow down even under heavy load, it does not get hot, and it does not "consume" an excessive amount of battery. The design is a matter of taste. May it serve me as long and as well as possible :)

Positive opinion

kroplPL

I have owned the phone for half a year and I am very satisfied.
1. Smooth operation in everyday applications: browser, VOD applications, simple games, video, camera
2. Great screen, bright with vivid colors. 120HZ permanently turned off (unnecessary option,)
3. Operating time about 1.5 days plus 67W charger. If the battery survives such charging power, I consider it a great option
4. Build quality, glass plus aluminum which is currently perceived as premium. For me, a disadvantage because without a protective case, the phone can slip in the hand. With a case, of course, it is typical for a case.
5. Dimensions: for me, one of the biggest advantages. A phone that can be held in one hand without using the other is excellent
6. Camera: I do not pay much attention to the camera, but for trip photos, it is very satisfactory.
7. System - as is typical for MIUI, many configuration options, if someone likes it, it is great, if not, they will consider it overloaded. The biggest disadvantage is ads in system applications. Disabling them is possible, but it requires significant effort, which should not occur in equipment costing several thousand PLN.
8. From what I remember, the phone does not have wireless charging, waterproof certification, USB-C only 2.0, but these options were not crucial for me.
9. Price 2660 in some promotion. Whether it is profitable, in my opinion, the most sensible choice from the MI12 series.


A D V E R T I S E M E N T
Positive opinion

Mariusz

A very successful model, in my opinion the best of the 12 series. The display is perfect in terms of both colors and viewing angles, with Gorilla glass Victus. The casing and frame, which is rare nowadays, are made entirely of aluminum, which is a big advantage, as it is strong and resistant to drops. The compact size can also be considered an advantage compared to today's large smartphones. Regarding technical specifications: the processor is not the latest, but it does not fall far behind the newer model; it does not overheat and is more energy efficient. The battery lasts for 1-1.5 days depending on usage, which I consider a good result. Everything works smoothly and without any problems. The camera is also a major positive; photos are perfect during the day, very good at night, and even better with gcam. Finally, the stereo sound is loud and truly performs exceptionally well. I personally recommend purchasing from Polish distribution; otherwise, there are unfavorable comments that something does not work as it should and the phone is unsatisfactory.
P.S.- I did not experience any phone overheating while playing games. Slight warming is not a defect; practically every phone has this characteristic depending on the game and processor load.

Positive opinion

Xenodium

Hello, I have owned the Xiaomi 12X for about 5 months now, so I can share my opinion.
In my opinion, the battery is a big advantage; with intensive use on mobile data, it lasts from 5 AM until 4-5 PM, on Wi-Fi all day, and for watching movies like Netflix for about 4 hours.
With 5G coverage, the battery is depleted faster than funds from a bank account????
Charging the phone is fast, about 40 minutes from 2% to 100%.
In my opinion, the processor is sufficient; it heats up slightly during data transmission and when it connects to 5G.
For me, the screen is fine, it is sufficient.
Let us stop here for a moment regarding the camera; despite the excellent components, it is at the level of the Samsung S7. My previous Huawei P40 took beautiful photos compared to the Xiaomi; perhaps they will fix this someday.
The speakers are sufficient for an average user like myself.
There are some flaws in their interface, but they can be forgiven.
The phone is very compact, which is a big advantage.
I rate it 7/10, but I think there is nothing competitive with such parameters and dimensions at this price.

Neutral opinion

Anto

The fact that such a flagship and highly advertised device does not have LTE 800 is unacceptable; a 4500 battery, while in devices half the price a larger one of 5000 is installed... This does not reflect well on the device.
Every smartphone supports frequency ranges depending on 1. the built-in modem (most often: the processor) 2. the region. mGSM.pl records frequencies provided by the manufacturer during the smartphone's premiere, which rarely takes place in Europe, and even more rarely in Poland. Before expressing an opinion on the frequencies we provide, it is worth consulting them with those provided by the regional branches where the smartphone appears later. This is practical advice, not a polemic. (jf)

Neutral opinion

dreju

With reasonable use, the battery lasts 2 days, the camera performs adequately, but without anything remarkable. It falls a bit short compared to the S21, and the problem is the tragically poor MIUI software. In a Samsung, everything simply works and you forget about any settings, whereas here there is constantly some problem, the worst of which is text messages not arriving. I spent half a day looking for a solution, and I still do not know if I have found it. It turned out that the operator does not have APN settings for this model and it must be configured manually... it is a pity, because hardware-wise it is really good, but unfortunately the software is a tragedy.


A D V E R T I S E M E N T
Positive opinion

pureavo

The phone is excellent, but you should install xiaomi.eu/MIUI Polska. Without it, there are bugs, font issues, etc. After installation, the interface is fixed, there are zero advertisements, call recording is available, etc. The phone has a long battery life (it always lasts 2 days for me with average use) and does not overheat. Perhaps the only bug is recording at 960 frames. I rate it 9/10, but without installing the Polish software, it is unfortunately 7/10, and I then understand the opinions of some people that MIUI is unrefined.

Negative opinion

Snake777

I have had the phone for a year. Pros: battery, speed of operation, fast charger, NFC and infrared, but above all the size—a small, light, versatile device. Cons: lack of water and dust resistance, it gets very hot, especially in a car mount when exposed to the sun and connected to the charger via cable, lack of wireless charging, the camera is poor for the price, it can sometimes freeze with several applications. Summary - price/quality is a weak 3 for me, I would have preferred the Asus Zenfone 10.

Positive opinion

Vajra

I have owned this phone for over a year; I do not keep phones for a long time as I enjoy testing them. This one happens to suit my taste, and so far, I do not see anything worthy of replacing it. Its compactness, AMOLED screen, and refresh rate are major advantages. In daily use, there is no possibility of the device slowing down, and the camera is excellent for me. The sound is at a good level. In my opinion, the phone is worth recommending.



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