Xiaomi Redmi K40S

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Xiaomi Redmi K40S
Xiaomi Redmi K40S
Xiaomi Redmi K40S
Xiaomi Redmi K40S
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₹21,590
This product is not available to buy in India

Key Specs

Android v12

Performance

(Very Good)
  • Qualcomm Snapdragon 870
  • Octa core (3.2 GHz, Single Core + 2.42 GHz, Tri core + 1.8 GHz, Quad core)
  • 6 GB RAM

Display

(Excellent)
  • 6.67 inches (16.94 cm); AMOLED
  • 1080x2400 px (FHD+)
  • 120 Hz Refresh Rate
  • Gorilla Glass Protection
  • Bezel-less with punch-hole display

Rear Camera

(Very Good)
  • Triple Camera Setup
    • 48 MP Primary Camera
    • 8 MP Ultra-Wide Angle Camera
    • 2 MP Macro Camera
  • Dual-color LED Flash
  • 4k @30fps Video Recording

Front Camera

(Very Good)
  • 20 MP Wide Angle Lens
  • Screen flash
  • Full HD @30 fps Video Recording

Battery

(Very Good)
  • 4500 mAh
  • 67W Fast Charging; USB Type-C port

General

  • SIM1: Nano, SIM2: Nano
  • 5G Supported
  • 128 GB internal storage, Non Expandable
Add To Compare See Full Specs

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Xiaomi Redmi K40S Specifications

General Performance Display Design Rear Camera Front Camera Battery Storage Network & Connectivity Multimedia Sensors

General
Operating System Android v12
Custom UI MIUI

Performance

(Very Good)
Chipset Qualcomm Snapdragon 870
Processor Octa core (3.2 GHz, Single core, Kryo 585 + 2.42 GHz, Tri core, Kryo 585 + 1.8 GHz, Quad core, Kryo 585)
Architecture 64 bit
Fabrication 7 nm
Graphics (GPU) Adreno 650
RAM 6 GB
RAM Type LPDDR5

Display

(Excellent)
Display Type AMOLED
Screen Size 6.67 inches (16.94 cm)
Resolution 1080x2400 px (FHD+)
Brightness 1300 nits
Refresh Rate 120 Hz
Aspect Ratio 20:9
Pixel Density 395 ppi
Screen to Body Ratio (calculated) 86.71 %
Screen Protection Corning Gorilla Glass, Glass Victus
Bezel-less Display Yes with punch-hole display
HDR 10 / HDR+ Support Yes, HDR 10+

Design
Height 163.2 mm
Width 75.9 mm
Thickness 7.7 mm
Weight 195 grams

Rear Camera

(Very Good)
Resolution
CameraMPApertureLens FeaturesSensor SizeSensor Name
Primary48 MPf/1.791/2" Sony Exmor-RS IMX582
Secondary8 MPf/2.2Ultra-Wide Angle
Tertiary2 MPf/2.4Macro
OIS Yes
Flash Yes, Dual-color LED Flash
Image Resolution 8000 x 6000 Pixels
Settings Exposure compensation, ISO control
Shooting Modes Continuous Shooting
High Dynamic Range mode (HDR)
Camera Features Digital Zoom
Auto Flash
Face detection
Touch to focus
Video Recording 3840x2160 @ 30 fps
1920x1080 @ 30 fps

Front Camera

(Very Good)
Resolution
CameraMPApertureLens FeaturesPixel Size
Primary20 MPf/2.4Wide Angle0.8µm
Flash Yes, Screen flash
Video Recording 1920x1080 @ 30 fps
1280x720 @ 30 fps

Battery

(Very Good)
Capacity 4500 mAh
Battery Type Li-Polymer
Quick Charging Yes, 67W Fast Charging, 100% in 38 minutes

Storage
Internal Storage 128 GB
Storage Type UFS 3.1
Expandable Storage No

Network & Connectivity
SIM Slot(s) Dual SIM
SIM Type SIM1: Nano, SIM2: Nano
Network Support 5G, 4G
VoLTE Yes
SIM 1 5G bands, 4G bands
Expand
Bands Features
5G bandsFDD N1 / N3 / N5 / N8 / N28
TDD N38 / N40 / N41 / N77 / N78
4G bandsTD-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)
SIM 2 4G bands
Expand
Bands Features
4G bandsTD-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)
Wi-Fi Yes, Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 5GHz
Wi-Fi Features Mobile Hotspot
Bluetooth Yes, v5.2
GPS Yes with A-GPS, Glonass
NFC Yes

Multimedia
Audio Jack USB Type-C
Audio Features Dolby Atmos

Sensors
Fingerprint Sensor Yes
Fingerprint Sensor Position Side
Other Sensors Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope

Xiaomi Redmi K40S Key Highlights

Processor Qualcomm Snapdragon 870
RAM & Storage 6 GB RAM + 128 GB
Display 6.67", 1080 x 2400 Resolution
Rear Camera 48 MP + 8 MP + 2 MP
Front Camera 20 MP
Battery 4500 mAh
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Mobiles› Xiaomi Mobile Phones› Xiaomi Redmi K40S
Updated on: June 5, 2026

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