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Realme C21 vs Oppo A3s (4GB RAM, 64GB) comparison

 Compare Realme C21
Realme C21 (4GB RAM, 64GB)
Compare Oppo A3s (4GB RAM, 64GB)
Oppo A3s (4GB RAM, 64GB)
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, 4GB4GB
Storage32GB, 64GB64GB
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 BlueNebula Red, Purple, Red
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, 4GB4GB
Internal storage32GB, 64GB64GB
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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