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Redmi K40 vs Redmi Note 9S comparison

 Compare Redmi K40
Redmi K40
Compare Redmi Note 9S
Redmi Note 9S
key specs
Display6.67-inch6.67-inch
ProcessorQualcomm Snapdragon 870Qualcomm Snapdragon 720G
Front Camera20-megapixel16-megapixel
Rear Camera48-megapixel + 8-megapixel + 5-megapixel48-megapixel + 8-megapixel + 5-megapixel + 2-megapixel
RAM6GB, 8GB, 12GB4GB
Storage128GB, 256GB64GB
Battery Capacity4520mAh5020mAh
OSAndroid 11Android 10
Resolution1080x2400 pixels1080x2400 pixels
general
BrandXiaomiXiaomi
ModelRedmi K40Redmi Note 9S
Release dateFebruary 25, 2021March 23, 2020
Launched in IndiaNoYes
Form factorTouchscreenTouchscreen
Dimensions (mm)163.70 x 76.40 x 7.80165.70 x 76.60 x 8.80
Weight (g)196.00209.00
Battery capacity (mAh)45205020
Fast chargingProprietaryProprietary
ColoursDreamland, Glossy Black, Icy WhiteAurora Blue, Glacier White, Interstellar Grey
display
Screen size (inches)6.676.67
TouchscreenYesYes
Resolution1080x2400 pixels1080x2400 pixels
Aspect ratio20:920:9
Protection type-Gorilla Glass
hardware
Processorocta-core2.3GHz octa-core
Processor makeQualcomm Snapdragon 870Qualcomm Snapdragon 720G
RAM6GB, 8GB, 12GB4GB
Internal storage128GB, 256GB64GB
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-megapixel48-megapixel (f/1.79) + 8-megapixel + 5-megapixel + 2-megapixel
No. of Rear Cameras3-
Rear autofocusYesPhase detection autofocus
Rear flashYes-
Front camera20-megapixel16-megapixel
No. of Front Cameras1-
software
Operating systemAndroid 11Android 10
SkinMIUI 12MIUI 11
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
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
GyroscopeYesYes
Face unlock-Yes
Fingerprint sensor-Yes

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