Xiaomi Redmi K40S

Name: Xiaomi Redmi K40S
Brand: Xiaomi
SKU: SKU21805

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Market Status: Not released

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Key Specifications

Processor

Snapdragon 870 Octa core

Display

6.67″ (16.94 cm) 120Hz AMOLED

Rear Camera

48+8+2 MP

Front Camera

20 MP

RAM | Storage

6 GB | 128 GB

Battery

4500 mAh | 67W Fast Charging

Network

Dual SIM: 5G & 4G

OS

Android v12

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Status	Not releasing in India
Last Updated	July 13, 2026

Xiaomi Redmi K40S Specifications

Performance Design Display Camera Battery Storage Software Connectivity Sound Sensors

Performance

Chipset

Qualcomm Snapdragon 870

No Of Cores

8 (Octa Core)

CPU

3.2GHz, Single core, Kryo 585 2.42GHz, Tri core, Kryo 585 1.8GHz, Quad core, Kryo 585

Architecture

64-bit

Fabrication

7 nm

RAM

6 GB

RAM Type

LPDDR5

Graphics (GPU)

Adreno 650

Design

Height

6.43 inches (163.2 mm)

Width

2.99 inches (75.9 mm)

Thickness

0.3 inches (7.7 mm)

Weight

195 grams

Screen Unlock

Fingerprint, Face unlock

Display

Screen Size

6.67 inches (16.94 cms)

Display Type

AMOLED

Resolution

1080 x 2400 pixels

Brightness

1300 nits

Display Refresh Rate

120Hz

Touch Refresh Rate

360Hz

Aspect Ratio

20:9

Pixel Density

395 pixels per inch (ppi)

Screen Protection

Corning Gorilla Glass, Glass Victus

Bezel-less Display

Yes, with Punch-hole

Color Reproduction

16M Colors

Screen to Body Ratio (calculated)

86.71 %

HDR 10 / HDR+ Support

Yes, HDR 10+

Camera

Rear camera setup

Triple

Rear camera (Primary)

48 MP resolutionf/1.79 aperture2" sensor size

Rear camera (Secondary)

8 MP resolutionUltra-Wide Angle lensf/2.2 aperture

Rear camera (Tertiary)

2 MP resolutionMacro lensf/2.4 aperture

Front camera setup

Single

Front camera (Primary)

20 MP resolutionWide Angle lensf/2.4 aperture0.8µm pixel size

Sensor

Exmor-RS CMOS Sensor

Flash

Dual-color LED Rear flashScreen Front flash

Video Resolution (Rear)

3840x2160 @ 30 fps1920x1080 @ 30 fps

Video Resolution (Front)

1920x1080 @ 30 fps1280x720 @ 30 fps

Optical Image Stabilization(OIS)

Yes

Camera Features

Auto Flash Auto Focus Face detection Touch to focus

Shooting Modes

Continuous Shooting High Dynamic Range mode (HDR)

Battery

Capacity

4500 mAh

Battery Type

Li-Polymer

Quick Charging

Yes, 67W Fast Charging, 100% in 38 minutes

Wireless Charging

Storage

Internal Storage

128 GB

Storage Type

UFS 3.1

External Storage

Software

Operating System

Android v12

Custom UI

MIUI

Connectivity

SIM Configuration

Dual SIM SIM1: Nano SIM2: Nano

Network

SIM1: 5G, 4GSIM2: 4G

SIM1 Bands

5G:FDD N1 / N3 / N5 / N8 / N28 ; TDD N38 / N40 / N41 / N77 / N78 4G:TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) ; FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

SIM2 Bands

4G:TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) ; FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 1900(band 2) / 1700(band 4) / 850(band 5) / 850(band 18) / 850(band 19) / 850(band 26)

Voice over LTE(VoLTE)

Yes

Wi-Fi

Yes, with a/ac/ax/b/g/n/n 5GHz

Wi-fi features

Mobile Hotspot

Bluetooth

Bluetooth v5.2

USB

USB Type-C, Mass storage device, USB charging

GPS

Yes with A-GPS, Glonass

NFC

Yes

Sound

Speaker

Yes

Speaker Features

Dolby Atmos

Audio Jack

Yes, USB Type-C

Video Player

Yes, Video Formats: 3GP, ASF, AVI, MKV, MP4, WebM, WMV

Sensors

Fingerprint Sensor

Yes

Fingerprint Sensor Position

Side

Other Sensor

Light sensorProximity sensorAccelerometerCompassGyroscope

Disclaimer : Specifications shown may be different from the actual product. We cannot guarantee that the information provided on this page is 100% correct. Please check with the retailer before purchasing.