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Oppo A3x 4G vs Vivo Y81 comparison

 Compare Oppo A3x 4G
Oppo A3x 4G
Compare Vivo Y81
Vivo Y81
key specs
Display6.67-inch6.22-inch
ProcessorQualcomm Snapdragon 6s Gen 1MediaTek Helio P22
Front Camera5-megapixel 5-megapixel
Rear Camera8-megapixel 13-megapixel
RAM4GB3GB
Storage64GB, 128GB32GB
Battery Capacity5100mAh3260mAh
OSAndroid 14Android 8.1
Resolution720x1604 pixels720x1520 pixels
general
BrandOppoVivo
ModelA3x 4GY81
Release dateOctober 25, 2024June 1, 2018
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)165.77 x 76.80 x 7.68155.06 x 75.00 x 7.77
Weight (g)186.00146.50
Battery capacity (mAh)51003260
Removable batteryNo-
Fast charging45W Fast Charging-
Wireless chargingNo-
ColoursNebula Red, Ocean BlueBlack
Body type-Plastic
display
Refresh Rate90 Hz-
Resolution StandardHD+-
Screen size (inches)6.676.22
TouchscreenYesYes
Resolution720x1604 pixels720x1520 pixels
Protection typeOther-
Aspect ratio-19:9
Pixels per inch (PPI)-270
hardware
Processorocta-core2GHz octa-core
Processor makeQualcomm Snapdragon 6s Gen 1MediaTek Helio P22 (MT6762)
RAM4GB3GB
Internal storage64GB, 128GB32GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)-256
camera
Rear camera8-megapixel (f/2.0)13-megapixel (f/2.2)
No. of Rear Cameras2-
Front camera5-megapixel (f/2.2)5-megapixel (f/2.2)
No. of Front Cameras1-
Rear autofocus-Phase detection autofocus
Rear flash-LED
software
Operating systemAndroid 14Android 8.1
SkinColorOS 14FunTouch OS 4.0
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes, v 5.00
USB OTGYes-
USB Type-CYes-
Headphones3.5mm3.5mm
Number of SIMs22
Active 4G on both SIM cardsYes-
Micro-USB-Yes
Wi-Fi Direct-Yes
sim 1
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMNano-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYesYes
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYes-
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