Redmi K40 Mobile reviews | Why to Miss Update, Read Now

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The new Xiaomi Redmi K40 is expected to roll out in India after its much-anticipated launch in China on February 2021 for CNY 1,999. If you’re searching for the specifications and minute details of this soon-to-be-launched device, then you’re at the right place! The phone comes with a 1080 x 2400 resolution, a 4520 mAh battery, and a powerful Snapdragon 870 processor.

Gear up for yet another lite version of the premium phone Redmi K40 pro. Read everything you need to know about this upcoming device by Xiaomi.

Display and battery

What do you see in a phone at first before purchasing it? Its display and battery backup. This new Redmi K40 comes with an AMOLED display of 6.67 inches and a bezel-less punch hole at the top of the screen. Along with this, it has a high-class pixel density of 396ppi.

The device is backed by a non-removable Li-Po battery of 4520 mAh. This powerful battery is coupled with a 33W fast charger of USB type-C. It is estimated to charge 100% in just 52 minutes.

Camera and Sound

The new Redmi K40 is supported by a class-apart Sony camera sensor. It comes with triple camera support of 48 ultra pixel rear camera along with 8 and 5 megapixels of secondary and tertiary camera respectively. It also offers a 20-megapixel camera for selfies and videos.

For sound, it has a loudspeaker and a 3.5mm jack for a seamless audio experience. However, there is no FM radio pre-installed in the device.

Network and Connectivity

You will find a hybrid sim card slot of nano-size in the device. Xiaomi Redmi K40 supports network connectivity of 2G/3G/4G and dual VoLTE as well. It also provides a support of 5G which is yet to be launched in India.

Wi-Fi 802.11 along with Bluetooth version 5.2 is installed on the device for faster sharing of files and photos. Along with this, you will also find a mobile hotspot as one of its features.

Storage and Processor

This forthcoming device is expected to launch with two variants of 64GB and 128GB in India. Think twice before going with the 64GB variant because the internal memory is non-expandable. There is no space for an external SD card due to the hybrid sim slot. It also supports a storage type of UFS 3.1

Redmi K40 is backed by a high-class processor of Qualcomm snapdragon 870 and an Octa-core CPU of 3.2 GHz. This fast processor would turn out to be extremely beneficial in terms of gaming and multitasking!

Fingerprint sensor and Operating system

Redmi K40 comes with a side-mounted fingerprint sensor, unlike its flagship version Redmi K40 pro that is expected to launch with an in-display fingerprint sensor. Apart from this, it is built with an accelerometer, light sensor, proximity sensor, compass, and a gyroscope.

You will find Android version 11 and MIUI custom user interface on the device.

Price and availability in India

This Xiaomi Redmi K40 is expected to launch in India in June 2021 for around Rs. 22,490. You will an in-depth overview of this Redmi K40 with further details in the table below!

Key specification

RamQualcomm Snapdragon 870
Rear camera48 MP + 8 MP + 5 MP
Front camera20 MP
Battery4520 mAh
Display6.67 inches
Refresh rate120 Hz


Launch dateJune 2021
Operating systemAndroid v11
Sim slotDual SIM, GSM+GSM
NetworkDual 4G, 5G compatible device


ChipsetQualcomm Snapdragon 870
CPUOcta core (3.2 GHz, Single core, Kryo 585 + 2.42 GHz, Tri core, Kryo 585 + 1.8 GHz, Quad core, Kryo 585)
Architecture64 bit
GraphicsAdreno 650


Resolution1080 x 2400 pixels
Display typeSuper AMOLED
Screen size6.67 inches
Aspect ratio20:9
Pixel density395ppi
screen-to-body ratio85.88%
Bezel-less displaywith punch-hole display
Screen protectionCorning gorilla glass v5
Touch screenYes, multitouch
HDR 10/HDR+ supportHDR 10+
Brightness1300 nits
Refresh rate120 Hz


Height163.7 mm
Width76.4 mm
Weight196 grams
ColorGlossy black, Icy white, dreamland
WaterproofNot known


Camera setupTriple
48 MP f/1.79, Wide Angle Primary Camera
(26 mm focal length, 2″ sensor size, 0.8µm pixel size)
8 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera
5 MP f/2.4, Macro Camera
(5.0″ sensor size, 1.12µm pixel size)
Image resolution8000 x 6000 Pixels
FlashYes, LED Flash
Shooting modesContinuous Shooting
High Dynamic Range mode (HDR)
SettingExposure compensation, ISO control
Camera FeaturesDigital Zoom, Auto Flash, Face detection
Touch to focus
Front Camera setupSingle
Video recording3840×2160 @ 30 fps
1920×1080 @ 30 fps
Front camera resolution20 MP f/2.4, Wide Angle Primary Camera
Front camera video recording1920×1080 @ 30 fps
SensorExmor-RS CMOS Sensor


Capacity 4520 mAh
USB Type-CYes
ChargingFast charging, 33W: 100% in 52 minutes


Internal memory64GB and 128GB
Storage typeUFS 3.1
Expandable memoryNo

Network and Connectivity

Sim slot(s)Dual SIM, GSM+GSM
Sim sizeSIM1: Nano, SIM2: Nano
Network support2G/3G/4G and supports 5G (not rolled out in India)
SIM 14G Bands: TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands: GSM 1800 / 1900 / 850 / 900 MHz
GPRS: Available
EDGE: Available
SIM 24G Bands: TD-LTE 2300(band 40)
FD-LTE 1800(band 3)
3G Bands: UMTS 1900 / 2100 / 850 / 900 MHz
2G Bands: GSM 1800 / 1900 / 850 / 900 MHz
GPRS: Available
EDGE: Available
BluetoothYes, v5.1
Wi-FiYes, Wi-Fi 802.11, ac/b/g/n/n 5GHz
Wi-Fi featuresMobile Hotspot
USB connectivityMass storage device, USB charging


Audio JackUSB type-c
FM RadioNo


Fingerprint sensorYes
Fingerprint Sensor positionside mounted
Other SensorsLight sensor, Proximity sensor, Accelerometer, Compass, Gyroscope
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