Redmi K40 vs Redmi 8A Dual comparison

Compare Redmi K40
Compare Redmi 8A Dual
key specs
Display6.67-inch6.22-inch
ProcessorQualcomm Snapdragon 870Qualcomm Snapdragon 439
Front Camera20-megapixel8-megapixel
Rear Camera48-Ultrapixel + 8-megapixel + 5-megapixel13-megapixel + 2-megapixel
RAM6GB2GB
Storage128GB32GB
Battery Capacity4520mAh5000mAh
OSAndroid 11Android 9.0
Resolution1080x2400 pixels720x1520 pixels
general
BrandXiaomiXiaomi
ModelRedmi K40Redmi 8A Dual
Release date25th February 202111th February 2020
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)163.70 x 76.40 x 7.80156.48 x 75.41 x 9.40
Weight (g)196.00188.00
Battery capacity (mAh)45205000
Fast chargingProprietaryProprietary
ColoursDreamland, Glossy Black, Icy WhiteSky White, Sea Blue, Midnight Grey
display
Screen size (inches)6.676.22
TouchscreenYesYes
Resolution1080x2400 pixels720x1520 pixels
Aspect ratio20:919:9
Protection type-Gorilla Glass
hardware
Processorocta-core1.45GHz octa-core (4x1.95GHz + 4x1.45GHz)
Processor makeQualcomm Snapdragon 870Qualcomm Snapdragon 439
RAM6GB2GB
Internal storage128GB32GB
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-512
Dedicated microSD slot-Yes
camera
Rear camera48-Ultrapixel (f/1.79) + 8-megapixel + 5-megapixel13-megapixel (f/2.2, 1.12-micron) + 2-megapixel (f/2.4, 1.75-micron)
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYesYes
Front camera20-megapixel8-megapixel (f/2.0, 1.12-micron)
No. of Front Cameras1-
software
Operating systemAndroid 11Android 9.0
SkinMIUI 12MIUI 11
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac/Yes802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.10Yes, v 4.20
NFCYes-
InfraredYes-
USB Type-CYesYes
Number of SIMs22
Headphones-3.5mm
Wi-Fi Direct-Yes
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
GyroscopeYes-
Face unlock-Yes
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