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Realme C21 vs Oppo A3 comparison

 Compare Realme C21
Realme C21
Compare Oppo A3s
Oppo A3s
ratings
Overall NDTV RatingRead Review-
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
key specs
Display6.50-inch6.20-inch
ProcessorMediaTek Helio G35Qualcomm Snapdragon 450
Front Camera5-megapixel 8-megapixel
Rear Camera13-megapixel + 2-megapixel + 2-megapixel 13-megapixel + 2-megapixel
RAM3GB, 4GB2GB
Storage32GB, 64GB16GB
Battery Capacity5000mAh4230mAh
OSAndroid 10Android 8.1 Oreo
Resolution720x1600 pixels720x1520 pixels
general
BrandRealmeOppo
ModelC21A3s
Release dateApril 8, 2021-
Launched in IndiaYes-
Dimensions (mm)165.20 x 76.40 x 8.90156.20 x 75.60 x 8.20
Weight (g)190.00168.00
Battery capacity (mAh)50004230
ColoursCross Black, Cross BlueRed, Dark Purple
Form factor-Touchscreen
display
Screen size (inches)6.506.20
TouchscreenYesYes
Resolution720x1600 pixels720x1520 pixels
Aspect ratio-19:9
hardware
Processorocta-core1.8GHz octa-core
Processor makeMediaTek Helio G35Qualcomm Snapdragon 450
RAM3GB, 4GB2GB
Internal storage32GB, 64GB16GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
Dedicated microSD slotYes-
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)13-megapixel (f/2.2) + 2-megapixel (f/2.4)
No. of Rear Cameras3-
Front camera5-megapixel (f/2.2)8-megapixel (f/2.2)
No. of Front Cameras1-
Rear autofocus-Yes
Rear flash-LED
software
Operating systemAndroid 10Android 8.1 Oreo
SkinRealme UIColorOS 5.1
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 b/g/n-
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.20
Micro-USBYesYes
Headphones3.5mm3.5mm
Number of SIMs2-
Wi-Fi Direct-Yes
sim 1
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
sim 2
SIM TypeNano-SIM-
GSM/CDMAGSM-
3GYes-
4G/ LTEYes-
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYes-

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