Oppo A55 vs Samsung Galaxy A21 comparison

Compare Oppo A55
Compare Samsung Galaxy A21
key specs
Display6.51-inch6.50-inch
ProcessorMediaTek Helio G35-
Front Camera16-megapixel13-megapixel
Rear Camera50-megapixel + 2-megapixel + 2-megapixel 16-megapixel + 8-megapixel + 2-megapixel + 2-megapixel
RAM4GB3GB
Storage64GB32GB
Battery Capacity5000mAh4000mAh
OSAndroid 11Android 10
Resolution720x1600 pixels-
general
BrandOppoSamsung
ModelA55Galaxy A21
Release dateOctober 1, 2021April 8, 2020
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Dimensions (mm)163.60 x 75.70 x 8.40-
Weight (g)193.00-
Battery capacity (mAh)50004000
Fast chargingProprietaryProprietary
ColoursRainbow Blue, Starry BlackBlack
Removable battery-No
Wireless charging-No
display
Refresh Rate60 Hz-
Screen size (inches)6.516.50
TouchscreenYesYes
Resolution720x1600 pixels-
Aspect ratio20:9-
hardware
Processorocta-core-
Processor makeMediaTek Helio G35MediaTek Helio P35 (MT6765)
RAM4GB3GB
Internal storage64GB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256512
Dedicated microSD slotYes-
camera
Rear camera50-megapixel (f/1.8) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)16-megapixel + 8-megapixel + 2-megapixel + 2-megapixel
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYesYes
Front camera16-megapixel13-megapixel
No. of Front Cameras1-
Pop-Up Camera-No
software
Operating systemAndroid 11Android 10
SkinColorOS 11.1-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac-
GPSYesYes
BluetoothYes, v 5.00Yes
USB OTGYes-
USB Type-CYes-
Headphones3.5mm-
Number of SIMs2-
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
sensors
Fingerprint sensorYesYes
Compass/ MagnetometerYes-
Proximity sensorYes-
AccelerometerYes-
Ambient light sensorYes-

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