100 prices collected today 5 countries · 3 merchants tracked No merchant pays for its ranking
How we rank Our method
Skip to content
Kalyneo PRICE · QUALITY
Toys Home Home appliances Video games and hobbies Phones Computing TV, audio and photo Health and beauty See all
Xiaomi 15 12 Go + 256 Go Noir Xiaomi 15 12 Go + 256 Go Noir Xiaomi 15 12 Go + 256 Go Noir
Xiaomi 15 12 Go + 256 Go Noir

1 / 3

Xiaomi

Xiaomi 15 12 GB + 256 GB Black

Compact 6.36" screen, 90 W charging and 5,240 mAh battery for lasting endurance.

Manufacturer reference 4223712770

Colour Black

Internal storage capacity 256 GB

Energy class View the energy label (PDF)
69 /100 Its best score: the best battery life, rated "very long" on its category’s scale.
See the price on Amazon This merchant’s price is not collected automatically: we would rather show none at all than a figure we could not date.
Duel it against another model Start a duel

1 merchant

offers it on this market

What the Xiaomi 15 12 GB + 256 GB Black is worth

The Xiaomi 15 12 GB + 256 GB Black combines a 6.36" CrystalRes AMOLED screen at 120 Hz with a Snapdragon 8 Elite processor built on 3 nm. The 5,240 mAh battery supports 90 W wired and 50 W wireless charging, while 12 GB LPDDR5X RAM and 256 GB UFS 4.0 storage handle daily tasks.

With an 81/100 battery rating thanks to its 5,240 mAh capacity, this model exceeds the market median of 4,500 mAh. The compact 6.36" screen scores 56/100, below the 6.7" median. The camera reaches 70/100 with triple 50 MP Leica Summilux sensors, 5x optical zoom and OIS stabilisation. Storage at 256 GB scores 58/100, power 80/100 with 12 GB RAM.

This smartphone suits those seeking reinforced battery life and fast charging in a compact format, while keeping a versatile camera system and enough power for demanding apps. IP68 certification, ultrasonic fingerprint reader and Xiaomi HyperOS 2 complete the package.

Its scores, criterion by criterion

Scores out of 100, calculated from the datasheet and compared with the market. The full method is public.

Battery life Very long

5,240 mAh · category median: 4,500 mAh

Power Adequate

12 GB · category median: 8 GB

Camera Good

50 MP · category median: 50 MP

Storage Limited

256 GB · category median: 384 GB

Screen Basic

6.4 " · category median: 6.7 "

All offers

Amazon Price not collected View

Kalyneo only shows a price when it has been collected automatically from the merchant, together with its collection date. For merchants whose prices are not connected, the page links to the merchant without showing a price. No price is ever entered by hand.

Documents

What the manufacturer publishes about this model. Each document opens in a new tab.

Étiquette énergie PDF 65.5 KB Document in Français Fiche d’information produit PDF 61.6 KB Document in Français

Specifications

Design 4
Product colour Black
Protection rating IP68
Protective glass Xiaomi Shield Glass
Frame material 6M42 aluminium alloy
Memory 3
RAM capacity 12 GB
Memory 12 GB
RAM type LPDDR5X 8,533 Mbit/s
Storage media 2
Internal storage capacity 256 GB
Storage type UFS 4.0
Screen 8
Display diagonal 6.36"
Display resolution 2670 x 1200 pixels
Panel type CrystalRes AMOLED
Maximum refresh rate 120 Hz
Maximum display brightness (Outdoor) 3,200 nits
Pixel density 460 PPI
Colour depth 68 billion colours
Colour gamut DCI-P3
Camera 25
Rear camera resolution (numeric) 50 MP
Front camera resolution (numeric) 32 MP
Rear camera aperture number f/1.62
Second rear camera resolution (numeric) 50 MP
Second rear camera aperture number f/2.2
Third rear camera resolution (numeric) 50 MP
Third rear camera aperture number f/2.0
Front camera aperture number f/2.0
Main camera equivalent focal length 23 mm
Ultra wide-angle equivalent focal length 14 mm
Telephoto equivalent focal length 60 mm
Main sensor size 1/1.31"
Pixel size (Super Pixel) 2.4 µm
Dynamic range 13.5 EV
Image stabilizer OIS
Optical zoom 5x
Digital zoom 60x
Video recording modes 8K, 4K, 1080p, 720p
8K video recording 7680 x 4320 at 24 fps and 30 fps
4K video recording 3840 x 2160 at 24 fps, 30 fps and 60 fps
Slow motion mode Yes
Time lapse mode Yes
Night mode Yes
Macro photography 10 cm
Optics Leica Summilux
Processor 5
Processor model Snapdragon 8 Elite
Manufacturing process 3 nm
Processor cores 8
Maximum CPU frequency 4.32 GHz
GPU Adreno
- 1
Battery capacity 5,240 mAh
Battery 1
Battery technology Lithium-Ion Polymer
Representation / rendering 4
Fast charging HyperCharge 90W
Wireless charging HyperCharge wireless 50W
Fingerprint reader Ultrasonic in-display fingerprint sensor
Face recognition Yes
Power 2
USB Type-C required charging power (max) 90 W
Wireless charging power 50 W
Network 7
Mobile network generation 5G
SIM card type Dual SIM (nano SIM + nano SIM or nano SIM + eSIM, eSIM + eSIM)
Top Wi-Fi standard Wi-Fi 7
Bluetooth Yes
Wi-Fi Yes
Bluetooth version 6.0
Near Field Communication (NFC) NFC
Connectivity 2
USB connector type USB Type-C
USB port USB 3.2 Gen1
Navigation 6
GPS (satellite) Yes
GLONASS Yes
Galileo Yes
BeiDou Yes
Quasi-Zenith Satellite System (QZSS) Yes
Electronic compass Yes
Sensors 6
Proximity sensor Yes
Ambient light sensor Yes
Accelerometer Yes
Gyroscope Yes
Barometer Yes
Infrared emitter Yes
Software 1
Operating system installed Xiaomi HyperOS 2
Weight and dimensions 4
Weight 191 g
Height 152.3 mm
Width 71.2 mm
Depth 8.08 mm
multimedia 2
Speakers stereo
Number of microphones 4 microphones
Audio 1
Supported audio formats Dolby Atmos
Battery life 1
Energy efficiency class A
Power management 1
Energy efficiency scale A to G

Who this model suits

It’s for you if

Your first criterion is the battery life: it happens to be its best score.
You want a good score on the power, above its category average.
You prefer a model tracked across several merchants, to buy at the right time.

Skip it if

Its lowest score is on the screen: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

The Xiaomi 15 packs a 5,240 mAh battery, earning an 81/100 autonomy score (very long) against a market median of 4,500 mAh. This capacity ensures a full day of use, or more depending on usage.

At 6.36 inches, this CrystalRes AMOLED display sits below the 6.7-inch market median, hence its 56/100 score (basic). It suits compact handling, but video enthusiasts will prefer a larger panel.

The Xiaomi 15 offers 90 W HyperCharge wired and 50 W wireless charging. The document does not specify the impact on lifespan: this is a technical feature, not a wear test over time.

Alternatives to this model

In the same category

The other smartphones models, best rated first.

Compare all models

Recently viewed