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Oppo A3 Pro vs Vivo X21 comparison

 Compare Oppo A3 Pro
Oppo A3 Pro
Compare Vivo X21
Vivo X21
key specs
Display6.67-inch6.28-inch
Front Camera8-megapixel12-megapixel
Rear Camera50-megapixel12-megapixel + 5-megapixel
RAM8GB6GB
Storage128GB, 256GB128GB
Battery Capacity5100mAh3200mAh
OSAndroid 14Android 8.1
Processor-Qualcomm Snapdragon 660
Resolution-1080x2280 pixels
general
BrandOppoVivo
ModelA3 ProX21
Release dateJune 21, 2024March 1, 2018
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Thickness7.68-
Weight (g)186.00156.20
IP ratingIP54-
Battery capacity (mAh)51003200
Removable batteryNoNo
Fast charging45W Fast ChargingProprietary
Wireless chargingNo-
ColoursMoonlight Purple, Starry BlackBlack, Gold
Dimensions (mm)-154.50 x 74.80 x 7.40
display
Refresh Rate120 Hz-
Screen size (inches)6.676.28
TouchscreenYesYes
Resolution-1080x2280 pixels
Aspect ratio-19:9
hardware
Processor makeMediaTek Dimensity 6300Qualcomm Snapdragon 660
RAM8GB6GB
Internal storage128GB, 256GB128GB
Processor-2.2GHz octa-core
Expandable storage-Yes
Expandable storage type-microSD
Expandable storage up to (GB)-256
camera
Rear camera50-megapixel12-megapixel (f/1.8, 1.4-micron) + 5-megapixel (f/2.4)
No. of Rear Cameras2-
Front camera8-megapixel12-megapixel (f/2.0)
No. of Front Cameras1-
Rear autofocus-Phase detection autofocus
Rear flash-LED
software
Operating systemAndroid 14Android 8.1
SkinColorOS 14FunTouch 4.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.00
USB Type-CYes-
Number of SIMs22
Wi-Fi standards supported-802.11 a/b/g/n/ac
NFC-No
Infrared-No
USB OTG-Yes
Micro-USB-Yes
Headphones-3.5mm
FM-No
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
5GYes-
ratings
Overall NDTV Rating-Read Review
Design Rating-
Display Rating-
Software Rating-
Performance Rating-
Battery Life Rating-
Camera Rating-
Value for Money Rating-
sensors
Fingerprint sensor-Yes
Compass/ Magnetometer-Yes
Proximity sensor-Yes
Accelerometer-Yes
Ambient light sensor-Yes
Gyroscope-Yes
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