Xiaomi

REDMI Note 15 5G 8 GB + 256 GB Black

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

Extended 5,520 mAh battery, 120 Hz display and 108 MP main camera sensor.

Manufacturer reference 4223713447

Energy class View the energy label (PDF)

72 /100 Its best score: the best battery life, rated "very long" on its category’s scale.

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

The REDMI Note 15 5G packs 8 GB of RAM, 256 GB of storage expandable up to 1 TB, a 6.77" screen at 2392 × 1080 pixels running at 120 Hz, and a 5,520 mAh silicon-carbon battery rechargeable at 45 W.

Battery life scores 85/100 thanks to capacity well above the market median, while the screen (71/100) and camera (78/100, stabilised 108 MP main sensor) sit above average. Storage (58/100) and performance (70/100) remain adequate for everyday tasks.

This smartphone suits anyone seeking long battery life and a large, smooth display below the 600 € threshold, with 5G connectivity, dual SIM and IP65 certification.

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

5,520 mAh · category median: 4,500 mAh

Camera Good

108 MP · category median: 50 MP

Screen Good

6.8 " · category median: 6.7 "

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 64.9 KB Document in Français Fiche d’information produit PDF 61.4 KB Document in Français

Specifications

Design 2

Product colour Black

Protection rating IP65

Memory 3

RAM capacity 8 GB

RAM type LPDDR4X

RAM expansion Up to 16 GB

Storage media 3

Internal storage capacity 256 GB

Compatible memory cards Expandable up to 1 TB

Storage type UFS2.2

Screen 11

Display diagonal 6.77"

Display resolution 2392 × 1080 pixels

Maximum refresh rate 120 Hz

Maximum display brightness (Outdoor) 3,200 nits

Display brightness 800 nits

Colour depth 12-bit

Colour gamut DCI-P3

Contrast ratio 8,000,000:1

PWM frequency 3,840 Hz

Touch sampling rate 240 Hz

TÜV Rheinland certification Low Blue Light, Circadian Friendly, Flicker Free

Camera 9

Rear camera resolution (numeric) 108 MP

Front camera resolution (numeric) 20 MP

Rear camera aperture number f/1.7

Main sensor size 1/1.67"

Image stabilizer Yes

Second rear camera resolution (numeric) 8 MP

Second rear camera aperture number f/2.2

Front camera aperture number f/2.2

Video recording modes 4K at 30 fps, 1080p at 30 fps, 720p at 30 fps

Processor 5

Processor model Snapdragon 6 Gen 3

Processor cores 8

Maximum processor frequency 2.4 GHz

Process technology 4 nm

GPU Adreno

- 1

Battery capacity 5,520 mAh

Battery 2

Battery type Silicon-carbon

Battery life 3,000 cycles

Power 2

USB Type-C required charging power (max) 45 W

Reverse charging 18 W

Representation / rendering 3

Fast charging Yes

Fingerprint reader Yes

Face recognition Yes

Battery life 3

Energy efficiency class B

Battery life in use Up to 1.58 days

Video playback time Up to 21 hours

Network 14

Mobile network generation 5G

Bluetooth Yes

SIM card type Nano-SIM

SIM card capability Dual SIM

5G bands n1/2/3/5/7/8/12/20/26/28/38/40/41/48/66/77/78

4G LTE FDD bands B1/2/3/4/5/7/8/12/13/17/18/19/20/26/28/32/66

4G LTE TDD bands B38/40/41/42/48

3G WCDMA bands B1/2/4/5/6/8/19

2G GSM bands 850/900/1,800/1,900 MHz

Wi-Fi Yes

Wi-Fi standards 802.11a/b/g/n/ac

Wi-Fi bands 2.4 GHz, 5 GHz

Bluetooth version 5.1

Near Field Communication (NFC) Yes

Navigation 5

GPS (satellite) Yes

GLONASS Yes

BeiDou Yes

Galileo Yes

Electronic compass Yes

Connectivity 1

USB connector type USB Type-C

multimedia 1

Speakers Dual speaker

Audio 1

Audio technologies Dolby Atmos, Hi-Res

Sensors 5

Accelerometer Yes

Ambient light sensor Yes

Proximity sensor Yes

Gyroscope Yes

Infrared emitter Yes

Software 1

Operating system installed Xiaomi HyperOS 2

Weight and dimensions 4

Weight 178 g

Height 164 mm

Width 75.42 mm

Depth 7.35 mm (Black, Blue), 7.40 mm (Purple)

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 camera, 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.

Yes, the REDMI Note 15 5G has an IP65 certification, which guarantees protection against water jets and dust. You can use it in the rain without worry.

The 45 W fast charging allows for rapid battery recharge. The document does not specify the exact time, but this power ensures much faster charging than a standard 18 W charger.

Yes, this smartphone accepts two Nano-SIM cards simultaneously, allowing you to manage two numbers or two carriers on the same device without swapping cards.