Realme C21Y vs Redmi 9A comparison

Compare Realme C21Y
Compare Redmi 9A
key specs
Display6.50-inch6.53-inch
ProcessorUnisoc T610MediaTek Helio G25
Front Camera5-megapixel 5-megapixel
Rear Camera13-megapixel + 2-megapixel + 2-megapixel 13-megapixel
RAM3GB, 4GB2GB
Storage32GB, 64GB32GB
Battery Capacity5000mAh5000mAh
OSAndroid 11Android 10
Resolution720x1600 pixels720x1600 pixels
general
BrandRealmeXiaomi
ModelC21YRedmi 9A
Release dateJuly 14, 2021June 30, 2020
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)164.50 x 76.00 x 9.10164.90 x 77.07 x 9.00
Weight (g)200.00194.00
Battery capacity (mAh)50005000
Fast chargingProprietaryProprietary
ColoursCross Black, Cross BlueMidnight Grey, Peacock Green, Twilight Blue
Removable battery-No
Wireless charging-No
display
Screen size (inches)6.506.53
TouchscreenYesYes
Resolution720x1600 pixels720x1600 pixels
Aspect ratio20:920:9
hardware
Processorocta-core2GHz octa-core
Processor makeUnisoc T610MediaTek Helio G25
RAM3GB, 4GB2GB
Internal storage32GB, 64GB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256512
Dedicated microSD slotYesYes
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)13-megapixel (f/2.2)
No. of Rear Cameras3-
Rear autofocusYes-
Rear flashYesYes
Front camera5-megapixel (f/2.4)5-megapixel (f/2.2)
No. of Front Cameras1-
software
Operating systemAndroid 11Android 10
SkinRealme UIMIUI 12
connectivity
Wi-FiYesYes
GPSYes-
BluetoothYes, v 5.00Yes
Micro-USBYesYes
Headphones3.5mm3.5mm
Number of SIMs22
FM-Yes
Active 4G on both SIM cards-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYes-
AccelerometerYes-
Ambient light sensorYes-
Face unlock-Yes
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