Redmi K40

Redmi K40 is an not released in india smartphone that comes with a 6.67-inch AMOLED display, 48MP primary camera, and is powered by the Snapdragon 870 processor. It features 4520mAh battery and 33W charging. This phone is launched in China but not available in India yet.

Market status:Not Released in India

Launched On: 25 Feb 2021

China

Launched Price in China₹24,000

Processor

Qualcomm Snapdragon 870

Adreno 650

Display

6.67" (120Hz)

FHD+ AMOLED
HDR10+

Battery

4520mAh (Lithium Polymer)

33Watt (wired)
Charger in the box

Rear Camera

48MP (Wide-angle)

Sony IMX582

8MP (Ultra-wide)

5MP (Macro)

EIS

4K@30fps

RAM/Storage

6GB (LPDDR5)

128GB (UFS 3.1)

Front Camera

20MP (Wide)

720p@30fps

Design

Gorilla Glass 5 (Front)

Plastic (Back)
Plastic Frame (Side)

Android (Redmi MIUI)

2 year(s) of OS Update

See full specifications

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

Redmi K40 Alternative Comparisons

VS Redmi K40 ₹24,000	Lava Blaze Duo 3 5G ₹16,999	Lava Blaze AMOLED 2 ₹12,999	Poco F4 ₹17,999	Lava Blaze Duo ₹16,999
-	Indian Market Match	Indian Market Match	Indian Market Match	Indian Market Match
Launch Date 25 Feb 2021	Launch Date 19 Jan 2026	Launch Date 11 Aug 2025	Launch Date 23 Jun 2023	Launch Date 16 Dec 2024
Qualcomm Snapdragon 870	MediaTek Dimensity 7060	MediaTek Dimensity 7060	Qualcomm Snapdragon 870	MediaTek Dimensity 7025
6.67", AMOLED, 120Hz	6.67", AMOLED, 120Hz	6.67", AMOLED, 120Hz	6.67", AMOLED, 120Hz	6.67", AMOLED, 120Hz
48MP+8MP+5MP/20MP (Front)	50MP+0.08MP/8MP (Front)	50MP+0.08MP/8MP (Front)	64MP+8MP+2MP/20MP (Front)	64MP+2MP/16MP (Front)
4520mAh, 33W	5000mAh, 33W	5000mAh, 33W	4500mAh, 67W	5000mAh, 33W
6GB + 128GB	6GB + 128GB	6GB + 128GB	6GB + 128GB	6GB + 128GB
Redmi MIUI, Android 11, 2 year(s) of OS Update	Lava Android, Android 15, 1 year(s) of OS Update	Lava Android, Android 15, 1 year(s) of OS Update	Poco MIUI, Android 12, 3 year(s) of OS Update	Lava Android, Android 14, 1 year(s) of OS Update

Redmi K40 Timeline

Mar 04, 2021

Redmi K40 now available globally, featuring three colour options, Glossy Black, Icy White and Dreamland, offering stylish design, reliable performance, and enhanced user experience.

Feb 25, 2021

Redmi K40 has been launched in China, with sales starting on Mar 04, 2021, priced from CNY ¥1,999 (approximately ₹23999). It features a 6.67-inch 120Hz display, a Qualcomm Snapdragon 870 processor, and a 4,520mAh battery.

Redmi K40 Full Specifications

Expanded View

General

Box ContentsPhone, 33W Charger, Type-C Cable, Case, SIM Ejector Tool
ColorsGlossy Black, Icy White, Dreamland
LaunchFebruary 25, 2021
AvailabilityMarch 04, 2021
Origin CountryChina
Launch Price₹24,000

Display

Type
- Display TypeAMOLED
- Display EngineE4
- Refresh Rate120 Hz
- Playback QualityHDR10+
- LTPO SupportNo
- LTPS SupportNo
- Touch Sampling Rate360 Hz
- Anti Reflection CoatingNo
Size
- Display Size6.67 inches
- Area107.4 cm²
- Screen to Body Ratio85.9
- Display Form FactorFlat Display
Resolution
- Display ResolutionFHD+
- Resolution Width1080 pixels
- Resolution Height2400 pixels
- Aspect Ratio20:9
- Pixel Density395 ppi
- Contrast Ratio5,000,000:1
- Colour GamutDCI-P3
- Color Gamut Range100 %
- Display Bit Rate8-bit
- Eye Comfort Technology-
- High Brightness1300 nits
- Peak Brightness1300 nits

Body

Dimensions163.7 x 76.4 x 7.8 mm
Weight196 grams
FrontGorilla Glass 5
BackPlastic
SidePlastic Frame
Build QualityCorning Gorilla Glass 5
PortsUSB Type-C, OTG
Speaker24-bit/192kHz Hi-Res Audio, Hi-Res Audio (wired and wireless), Stereo Speakers, Dolby Atmos

Processor

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

Benchmarking

System Performance

AnTuTu 0

Main Camera

Main Camera
- Megapixel48 MP
- Camera SensorSony IMX582
- Lens TypeWide-angle
- Aperturef/1.79
- Focal Length26 mm
- Sensor Size1/2"
- Pixel Size0.8 µm
- Camera FeaturesPDAF
Main Camera #2
- Megapixel8 MP
- Lens TypeUltra-wide
- Aperturef/2.2
- Field of View119
- Pixel Size1.12 µm
Main Camera #3
- Megapixel5 MP
- Lens TypeMacro
- Aperturef/2.4
- Focal Length50 mm
Features
- Camera StabilizationEIS
- Auto Focus TypePDAF
- Dynamic Video Recording SupportSDR recording
- Dedicated Imaging ChipNo Chip
- Lens EnhancementsNo enhancement
- Slow Motion Recording960 fps slomo
- FeaturesCinematic Mode
  Dual View
  HDR
  LED Flash
  Night Mode
  Panorama
  Portrait Mode
  Professional Mode
  Slow Motion
  Time Lapse
Video
- Video Recording1080p@120fps
  1080p@240fps
  1080p@30fps
  1080p@60fps
  1080p@960fps
  4K@30fps
  720p@120fps
  720p@240fps
  720p@30fps
  720p@960fps
- Log Video Recording SupportNo
- Featuresgyro-EIS

Operating System

Operating SystemAndroid 11, Redmi MIUI
Software Updates2 year(s) of Software updates and 3 year(s) of Security updates
AI FeaturesAI Beauty, AI Camera

Selfie Camera

Front Camera
- Megapixel20 MP
- Lens TypeWide
- Aperturef/2.5
- Sensor Size1/3.4"
- Pixel Size0.8 µm
Features
- Auto Focus TypeFixed Focus
- FeaturesFilters
  Gesture Selfie
  HdR
  Night mode
  panorama
  Portrait Mode
Video
- Video Recording1080@30fps
  720p@30fps
- Dynamic Video Recording SupportSDR recording
- Features1080p@30fps
  720p@120fps
  720p@30fps

Battery

Capacity4520 mAh, Lithium Polymer (Non-removable)
Charging
- Charging Speed Wired33 W
- Wireless Charging SupportNo
- Reverse Wireless Charging SupportNo
- Reverse Wired Charging SupportNo
- Charging Standards SupportedPD3.0
  QC3.0
- Bypass Charging SupportNo

Memory

Storage128GB, UFS 3.1
RAM6GB, LPDDR5

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 (7 bands)
4G Bands1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42 (17 bands)
5G Bands1, 3, 28, 41, 77, 78 SA/NSA/Sub6 (6 bands)
Speed5G, CDMA, GSM, LTE, WCDMA

Connectivity

WLANWi-Fi 6 802.11 a/b/g/n/ac/ax, Hotspot, Wi-Fi Direct, Dual Band
Bluetooth5.1, AAC, LDAC, LHDC
PositioningA-GPS, AGNSS, BeiDou(B1/B2a), GALILEO (E1+E5a), GLONASS (G1), GPS (L1+L5), NavIC, QZSS (L1+L5)
NFCSupported

Features

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