Redmi K40S

Redmi K40S is a new smartphone that features a 6.67 inches FHD+ AMOLED display, Snapdragon 870 processor, 6GB RAM, and 128GB storage. It also includes a 48MP primary camera and a 20MP front camera. Redmi K40S also includes a 4500mAh battery pack, 67W charging, and runs Android 12 with Redmi MIUI. Redmi K40S has launched in China but has not released in India.

Market status:Not Released in India

Launched on: 17 Mar 2022

China

Launched Price in China¥1799

Processor

Snapdragon 870

Display

6.67 inches FHD+ AMOLED (120Hz)

Rear Camera

48MP8MP2MP

Wide-angleUltra-wideMacro

Front Camera

20MP

Wide

RAM/Storage

6GB

128GB

Battery

4500mAh (67W)

Android 12 (Redmi MIUI)

Processor

Snapdragon 870

Display

6.67 inches FHD+ AMOLED (120Hz)

Rear Camera

48MP8MP2MP

Wide-angleUltra-wideMacro

Front Camera

20MP

Wide

RAM/Storage

6GB

128GB

Battery

4500mAh (67W)

Android 12 (Redmi MIUI)

This product has not been released in India and all information is based on the China launch.

This phone's software support window has officially closed. It's still usable, but don't expect fresh updates or features

Redmi K40S Review

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Redmi K40S Timeline

Mar 17, 2022

Redmi K40S has been launched in China, with sales beginning the same day at a starting price of CNY ¥1,799 (around ₹21,020), featuring a 6.67-inch FHD+ display, Snapdragon 870 chipset, 4500mAh battery, and 67W fast charging.

Redmi K40S Full Specifications

Expanded View

General

Box ContentsPhone, 67W Charger, Type-C Cable, Case, SIM Ejector Tool
AvailabilityMarch 17, 2022
Launch Price¥1799

Display

Type
- Display TypeAMOLED
- Display EngineE4
- Refresh Rate120Hz
- Playback QualityHDR10+
- LTPO SupportNo
- LTPS SupportNo
- Touch Sampling Rate360Hz
- Anti Reflection CoatingNo
Size
- Display Size6.67 inches
- Area107.4 cm²
- Screen to Body Ratio86.6%
- Display Form FactorFlat Display
Resolution
- Display ResolutionFHD+
- Resolution Width1080pixels
- Resolution Height2400pixels
- Aspect Ratio20:9
- Pixel Density395ppi
- Contrast Ratio5,000,000:1
- Colour GamutDCI-P3
- Color Gamut Range100%
- Display Bit Rate8-bit
- Eye ProtectionSGS Display Certification
- High Brightness1300nits
- Peak Brightness1300nits

Body

Dimensions163.2 x 75.95 x 7.7 mm
Weight195 grams
FrontGorilla Glass 5
BackPlastic
SidePlastic Frame
Build QualityCorning Gorilla Glass 5
PortsUSB Type-C, OTG
IP RatingSplash Resistant
SpeakerHi-Res & Hi-Res Wireless Audio, Stereo Speakers, Dolby Atmos

Processor

Chipset
- Chipset ManufacturerQualcomm
- ChipsetSnapdragon 870
- Fabrication Size7 nm
CPU
- Number of CoresOcta-core
- Clock Speed1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585
- Cooling SystemVapor Chamber Cooling
GPUAdreno 650

Operating System

Operating SystemAndroid 12, Redmi MIUI
Software Updates3 year(s) of Security updates
AI FeaturesAI Beauty, AI Camera

Main Camera

Main Camera
- Main Camera Megapixel48MP
- Main Camera Camera SensorSony IMX582
- Main Camera Lens TypeWide-angle
- Main Camera Aperturef/1.79
- Main Camera Sensor Size1/2.0"
- Main Camera Pixel Size0.8 µm
- Main Camera Camera FeaturesOIS, PDAF
Main Camera #2
- Main Camera #2 Megapixel8MP
- Main Camera #2 Lens TypeUltra-wide
- Main Camera #2 Aperturef/2.2
- Main Camera #2 Field of View119°
- Main Camera #2 Pixel Size1.12 µm
Main Camera #3
- Main Camera #3 Megapixel2MP
- Main Camera #3 Lens TypeMacro
- Main Camera #3 Aperturef/2.4
- Main Camera #3 Pixel Size0.64 µm
Features
- Camera StabilizationOIS
- Auto Focus TypePDAF
- Dynamic Video Recording SupportSDR recording
- Slow Motion Recording960 fps slomo
- FeaturesCinematic Mode, Color Spectrum Sensor, Dual LED Dual Tone Flash, Dual View, HDR, Professional Mode, Slow Motion
Video
- Video Recording1080p@120fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 720p@120fps, 720p@240fps, 720p@30fps, 720p@960fps
- Log Video Recording SupportNo
- Video Featuresgyro-EIS

Selfie Camera

Front Camera
- Front Camera #1 Megapixel20MP
- Front Camera #1 Lens TypeWide
- Front Camera #1 Aperturef/2.0
- Front Camera #1 Pixel Size1 µm
Features
- Auto Focus TypeFixed Focus
- FeaturesAI Beauty Mode, Face unlock, Gesture Selfie, Night, panorama, Portrait Mode, Screen flash
Video
- Video Recording1080@30fps
- HDR Recording SupportSDR recording
- Video Features1080p@30 fps, 720p@30/120fps

Battery

Capacity
- Battery Capacity4500mAh
- Battery TypeLithium Ion
Charging
- Charging Speed Wired67W
- Wireless Charging SupportNo
- Reverse Wireless Charging SupportNo
- Reverse Wired Charging SupportNo
- Charging Standards SupportedPD3.0, QC3+
- Bypass Charging SupportNo

Memory

Storage
- Storage Size128GB
- Storage TypeUFS 3.1
RAM
- RAM Size6GB
- RAM TypeLPDDR5

Network

SIMDual SIM (nano-SIM, dual stand-by)
Technology5G, CDMA, EVDO, GSM, LTE FDD, LTE TD, WCDMA
2G Bands1800, 1900, 800, 850, 900 (5 bands)
3G Bands1, 2, 4, 5, 6, 8, 19, CDMA EVDO: BC0 (8 bands)
4G Bands1, 2, 3, 4, 5, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42 (15 bands)
5G Bands1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA (10 bands)
Speed5G, CDMA, GSM, LTE, WCDMA

Connectivity

WLAN
- Wi-Fi VersionWiFi 6
- Wi-Fi StandardsWi-Fi 6 802.11 a/b/g/n/ac/ax
- Wi-Fi FeaturesHotspot, Wi-Fi Direct
Bluetooth
- Bluetooth Version5.2
- Bluetooth CodecsAAC, LDAC, LHDC
PositioningA-GPS, AGNSS, BeiDou(B1/B2a), Galileo (E1+E5a), GLONASS (G1), GPS (L1+L5)
NFCSupported

Features

Fingerprint ScannerSide Mounted
Sensors
- Sensors on BoardAccelerometer, Ambient Light Sensor, Color Temperature Sensor, Electronic Compass, Gyroscope, Infrared Sensor, Linear Motor, Ultrasonic Distance Sensor
Additional FeaturesX-axis Linear Motor