Oppo A9 2020 vs Vivo X21 UD comparison

Compare Oppo A9 2020
Compare Vivo X21 UD
key specs
Display6.50-inch6.28-inch
ProcessorQualcomm Snapdragon 665Qualcomm Snapdragon 660
Front Camera16-megapixel12-megapixel
Rear Camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel12-megapixel
RAM4GB6GB
Storage128GB128GB
Battery Capacity5000mAh3200mAh
OSAndroid 9 PieAndroid 8.1
Resolution-1080x2280 pixels
general
BrandOppoVivo
ModelA9 2020X21 UD
Release date11th September 2019March 2018
Launched in IndiaYes-
Form factorTouchscreenTouchscreen
Battery capacity (mAh)50003200
ColoursMarine Green, Space PurpleRuby Red, Aurora White, Black
Dimensions (mm)-154.50 x 74.80 x 7.40
Weight (g)-156.20
display
Screen size (inches)6.506.28
TouchscreenYesYes
Protection typeGorilla Glass-
Resolution-1080x2280 pixels
hardware
Processorocta-coreocta-core
Processor makeQualcomm Snapdragon 665Qualcomm Snapdragon 660
RAM4GB6GB
Internal storage128GB128GB
Expandable storageYes-
Expandable storage typemicroSD-
Expandable storage up to (GB)256-
Dedicated microSD slotYes-
camera
Rear camera48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel12-megapixel
Rear flashYesLED
Front camera16-megapixel12-megapixel
software
Operating systemAndroid 9 PieAndroid 8.1
SkinColorOS 6.0.1FunTouch 4.0
connectivity
Wi-FiYesYes
GPSYesYes
BluetoothYesYes, v 5.00
Number of SIMs22
Wi-Fi DirectYes-
Active 4G on both SIM cardsYes-
Wi-Fi standards supported-802.11 a/b/g/n/ac
USB OTG-Yes
Headphones-3.5mm
sim 1
SIM TypeNano-SIMMicro-SIM
3GYesYes
4G/ LTEYesYes
GSM/CDMA-GSM
sim 2
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Fingerprint sensorYes-
Proximity sensorYesYes
AccelerometerYes-
Ambient light sensorYesYes
Compass/ Magnetometer-Yes
Gyroscope-Yes
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