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Redmi K40 vs Samsung Galaxy M31 comparison

 Compare Redmi K40
Redmi K40
Compare Samsung Galaxy M31
Samsung Galaxy M31
key specs
Display6.67-inch6.40-inch
ProcessorQualcomm Snapdragon 870Samsung Exynos 9611
Front Camera20-megapixel32-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel64-megapixel + 8-megapixel + 5-megapixel + 5-megapixel
RAM6GB, 8GB, 12GB6GB
Storage128GB, 256GB128GB
Battery Capacity4520mAh6000mAh
OSAndroid 11Android 10
Resolution1080x2400 pixels1080x2340 pixels
general
BrandXiaomiSamsung
ModelRedmi K40Galaxy M31
Release dateFebruary 25, 2021February 26, 2020
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)163.70 x 76.40 x 7.80159.20 x 75.10 x 8.90
Weight (g)196.00191.00
Battery capacity (mAh)45206000
Fast chargingProprietary-
ColoursDreamland, Glossy Black, Icy WhiteBlue, Black
Body type-Plastic
Removable battery-No
Wireless charging-No
display
Screen size (inches)6.676.40
TouchscreenYesYes
Resolution1080x2400 pixels1080x2340 pixels
Aspect ratio20:919.5:9
hardware
Processorocta-core2.3GHz octa-core (4x2.3GHz + 4x1.7GHz)
Processor makeQualcomm Snapdragon 870Samsung Exynos 9611
RAM6GB, 8GB, 12GB6GB
Internal storage128GB, 256GB128GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-512
Dedicated microSD slot-Yes
camera
Rear camera48-megapixel (f/1.79) + 8-megapixel + 5-megapixel64-megapixel (f/1.8) + 8-megapixel (f/2.2) + 5-megapixel (f/2.2) + 5-megapixel (f/2.4)
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel32-megapixel (f/2.0)
No. of Front Cameras1-
software
Operating systemAndroid 11Android 10
SkinMIUI 12One UI 2.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/ax802.11 a/b/g/n/ac
GPSYesYes
BluetoothYes, v 5.10Yes, v 5.00
NFCYes-
InfraredYes-
USB Type-CYesYes
Number of SIMs22
Headphones-3.5mm
Active 4G on both SIM cards-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sensors
In-Display Fingerprint SensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYesYes
GyroscopeYesYes
Face unlock-Yes
Fingerprint sensor-Yes
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-

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