Xiaomi

REDMI 15 5G 8 GB + 256 GB Green

Name: REDMI 15 5G 8 GB + 256 GB Green
Brand: Xiaomi

Huge 7,000 mAh battery, 6.9-inch display and 256 GB storage in a 5G smartphone.

Manufacturer reference 4223711629

Colour Green

Black
Green
Grey

Internal storage capacity 256 GB

128 GB
256 GB

RAM capacity 8 GB

4 GB
8 GB

Energy class View the energy label (PDF)

73 /100 Its best score: the best battery life, rated "very long" on its category’s scale.

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What the REDMI 15 5G 8 GB + 256 GB Green is worth

The Xiaomi REDMI 15 5G focuses on outstanding battery life with its 7,000 mAh capacity, well above the market median of 4,500 mAh, earning a 95/100 score. The 6.9-inch 144 Hz display and 8 GB of RAM support smooth daily use, while 256 GB of storage can be expanded up to 2 TB.

Photography relies on a 50 MP rear sensor (f/1.8) and an 8 MP front camera. The 6 nm Snapdragon 6s Gen 3 and IP64 certification round out a balanced package. 33 W fast charging and 18 W reverse charging add versatility.

This model suits those seeking exceptional battery life without compromising screen size, ideal for intensive mobile use. The overall 73/100 score reflects a solid balance of endurance, display and camera performance in this price range.

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

7,000 mAh · category median: 4,500 mAh

Screen Good

6.9 " · category median: 6.7 "

Camera Good

50 MP · category median: 50 MP

Power Adequate

8 GB · category median: 8 GB

Storage Limited

256 GB · category median: 384 GB

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Documents

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

Étiquette énergie PDF 64.5 KB Document in Français Fiche d’information produit PDF 61.4 KB Document in Français

Specifications

Design 1

Product colour Green

Memory 3

RAM capacity 8 GB

RAM memory extension Up to 16 GB

RAM type LPDDR4X

Storage media 3

Internal storage capacity 256 GB

Compatible memory cards Expandable up to 2 TB

Storage type UFS 2.2

Screen 13

Display diagonal 6.9"

Display resolution 2340 x 1080

Maximum refresh rate 144 Hz

Display brightness 700 nits

Maximum display brightness (Outdoor) 850 nits

Colour gamut 85% NTSC

Touch sampling rate 288 Hz

Contrast ratio 1400:1

Pixel density 374 PPI

Low Blue Light certification Yes

Circadian Friendly certification Yes

Flicker Free certification Yes

Wet Touch technology Wet Touch 2.0

- 1

Battery capacity 7,000 mAh

Camera 7

Rear camera resolution (numeric) 50 MP

Front camera resolution (numeric) 8 MP

Rear camera aperture number f/1.8

Front camera aperture number f/2

Night mode Yes

Video recording modes 1080p at 30 fps

Lens 5P

Network 7

Mobile network generation 5G

Bluetooth Yes

SIM card capability Dual SIM

Wi-Fi Yes

Bluetooth version 5.1

Near Field Communication (NFC) Yes

SIM card format SIM 1 + hybrid (SIM or microSD)

Processor 4

Processor model Snapdragon 6s Gen 3

Processor cores 8

Manufacturing process 6 nm

Processor frequency 2.3 GHz

Software 1

Operating system installed Xiaomi HyperOS 2

Weight and dimensions 4

Weight 224 g

Height 171.08 mm

Width 82.05 mm

Depth 8.55 mm

Power 2

USB Type-C required charging power (max) 33 W

Reverse charging 18 W

Representation / rendering 4

Fast charging Yes

Fingerprint reader Yes

Face recognition Yes

Water and dust resistance IP64

Navigation 5

GPS (satellite) Yes

GLONASS Yes

Galileo Yes

BeiDou Yes

Electronic compass Yes

Sensors 4

Ambient light sensor Yes

Proximity sensor Yes

Accelerometer Yes

Infrared emitter Yes

multimedia 2

Speakers Dolby Atmos

Audio quality Hi-Res Audio

Battery 4

Charge cycles (80%) 1,600 cycles

Battery technology Silicon-carbon anode

Smart charging Smart charging 2.0

Battery health Battery health 4.0

Battery life 1

Energy efficiency class B

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 screen, 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 storage: skip it if that is decisive for you.

Frequently asked questions

Answers drawn from this model’s datasheet.

The 7,000 mAh battery achieves an autonomy rating of 95/100, qualified as very long. It significantly exceeds the market median of 4,500 mAh. The manufacturer announces 1,600 charge cycles before dropping to 80% capacity, thanks to silicon-carbon anode technology.

The 6.9-inch screen displays 700 nits standard brightness and up to 850 nits outdoors. It features a 144 Hz refresh rate and Flicker Free certification. IP64 protection allows use in light rain, and Wet Touch 2.0 technology keeps the screen responsive even when wet.

Yes, the 256 GB storage can be expanded up to 2 TB via microSD card. The SIM tray accommodates either two SIM cards or one SIM and one microSD. Internal storage uses UFS 2.2 technology, and the 8 GB RAM can be virtually extended up to 16 GB.