Making phone calls, sending messages, surfing the internet - for most people, everyday life is hardly conceivable without a smartphone. It is therefore all the more important to be able to rely on the devices. The Stiftung Warentest smartphone test answers the question of which model is the test winner and which ones lack stability or basic functions...
Xiaomi 12X
256 GB, Blue, 6.28", Dual SIM, 50 Mpx, 5GMore than 10 items in stock at third-party supplier
Product details
Master design
69.9mm width
Fit in one hand
69.9mm width enables the phone to be held with one hand. Comfortable to hold, with a generous 6.28'' display for an outstanding viewing experience.
Master of performance
Qualcomm® Snapdragon® 870
Widely praised outstanding performance
The Qualcomm® Snapdragon® 870 incorporates an A77 super-large core with a main frequency of up to 3.2GHz. It handles everything from audio-visual entertainment and graphic-intensive games to document collaboration, all with the same customary ease and performance.
2600mm² super-large VC liquid cooling area
Stay cool all the time
Long-lasting 4500mAh (typ) battery
Never worry about running out of power
The compact body packs a powerful fast-charging 4500mAh battery, the highest energy-density battery in Xiaomi's history, so you'll never have to worry about running out of battery.
67W wired turbo charging
Enjoy more usage time
Take a quick break while your phone charges to 100% in 39 minutes.
Shoot like a master
50MP pro-grade main camera
Maintain focus all the time
32MP selfie camera
Unlimited creative style
Stay inspired
Capture beautiful moments at any time.
Masterpiece on display
120Hz refresh rate
DisplayMate A+ rating
Break 14 new records
419 ppi
Detail beyond the human eye
Life-like realism
High pixel density ensures realistic and extremely detailed pictures.
68 billion colors
True Color
More vivid and precise
Countless colors and professional calibration make every image a feast for the eyes.
Master the immersive sound
The exactly symmetrical structure delivers a more immersive stereo experience. Enjoy movies and music more with fluid, high-quality audio.
Memory | 8 GB |
Storage capacity | 256 GB |
Display size (inches) | 6.28" |
Image resolution | 1080 x 2400 pixels |
Operating system | Android |
Capacity | 4500 mAh |
Number of cameras | Triple camera |
Item number | 20632838 |
Manufacturer | Xiaomi |
Category | Smartphones |
Manufacturer no. | MZB0ABFEU |
Release date | 14.4.2022 |
Colour | Blue |
Exact colour description | Blue |
Model range | Xiaomi 12 |
Mobile features | Face Unlock, Fingerprint |
SAR value | 0.59 W/kg |
Operating system | Android |
Operating System Version | Android 11 |
Display size (inches) | 6.28" |
Screen technology | AMOLED |
Panel technology | OLED |
Image resolution | 1080 x 2400 pixels |
Aspect ratio | 20:9 |
Refresh rate | 120 Hz |
Pixel density | 419 ppi |
Mobile phone standard | 5G |
Connectivity | Bluetooth, Infrared, NFC, WiFi hotspot, WLAN |
Wi-Fi standard | 802.11ad, Wi-Fi 3 / 802.11g, Wi-Fi 4 / 802.11n, Wi-Fi 5 / 802.11ac |
Bluetooth version | 5.1 |
Audio features | Dolby Atmos |
Number of cameras | Triple camera |
Camera resolution | 50 Mpx |
Wide angle camera angle | 123° |
Camera feature | HDR, Tele, Wide-angle |
Image stabilisation | Optical (OIS) |
Front camera resolution | 32 Mpx |
Max. Video resolution | 7680 x 4320 pixels |
Images per sec. at max. Resolution | 24p |
USB connector type | USB-C |
Mobile processor | Qualcomm Snapdragon 7 |
Number of processor cores | 8 -Core |
Clock frequency | 3.20 GHz |
Memory | 8 GB |
Storage capacity | 256 GB |
Max. memory extension | 256 GB |
SIM card type | Default SIM |
SIM type | Dual SIM |
Sensors | Accelerometer, Gyro sensor |
Localisation technology | Galileo, GLONASS, GPS |
Capacity | 4500 mAh |
Charging technology | Fast Charge, Power Delivery 3.0, Quick Charge 4.0 |
CO₂-Emission | |
Climate contribution |
Scope of delivery | USB Type-C |
The reparability index | 7.8 |
Height | 152.70 mm |
Width | 69.90 mm |
Length | 8.16 mm |
Weight | 176 g |
Length | 18.50 cm |
Width | 10.40 cm |
Height | 6.50 cm |
Weight | 569 g |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Smartphones» category have a defect within the first 24 months?
Source: Digitec Galaxus- 4.Motorola1.3 %
- 4.realme1.3 %
- 4.Xiaomi1.3 %
- 7.Honor1.4 %
- 7.Nothing1.4 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- 11.Apple4 days
- 11.Nothing4 days
- 11.Xiaomi4 days
- 14.Doro5 days
- 15.Cat6 days
Return rate
How often is a product of this brand in the «Smartphones» category returned?
Source: Digitec Galaxus- 9.ZTE2.8 %
- 11.HMD2.9 %
- 12.Xiaomi3.1 %
- 13.OPPO3.2 %
- 14.Blackview3.8 %
- Compact and lightweight phone with very good workmanship
- OLED with 6.3 inch, 120 Hz, pulse sensor and superior quality
- Top chip with high performance
- Stereo speakers in the frame
- 50 MP main camera with good photo quality
- Fast charging with 67 watts and 12:13 battery life

Admittedly, the 12X is the cheapest phone among the basic high-end devices at 700 euros, but it performs comparatively well. Without the weaknesses in LTE reception, it would have scored even higher. The 12X is outstanding in terms of handiness and even outperforms the S22+ here...

Admittedly, the 12X for 700 euros is the cheapest phone among the basic high-end devices, but it performs comparatively well. Without the reception weaknesses in the LTE range, it would have scored even higher. The 12X is outstanding in terms of handiness and even outperforms the S22+ here. Anyone looking for a compact high-end phone is in the right place. ...
I do not want to and cannot give a clear recommendation for one of the three devices. All three are of high quality, work quickly and have many arguments in their respective price ranges. Whether the price difference between the 12 Pro and 12X is justified, which is currently around 330 euros, is something everyone must decide for themselves...

- Very noble & handy housing
- Bright 6.3" AMOLED display with 120 Hz
- fast smartphone with 5G & WiFi 6
- 50 megapixel triple cam with image stabiliser
- Long battery life and very fast charging
- great stereo speakers from Harman Kardon