Oppo A3s vs Vivo Y81 vs Vivo Y83 comparison

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key specs
Display6.20-inch6.22-inch6.22-inch
ProcessorSnapdragon 450MediaTek MT6762MediaTek Helio P22
Front Camera8-megapixel 5-megapixel 8-megapixel
Rear Camera13-megapixel + 2-megapixel 13-megapixel 13-megapixel
RAM2GB3GB4GB
Storage16GB32GB64GB
Battery Capacity4230mAh3260mAh3260mAh
OSAndroid 8.1 OreoAndroid 8.1Android 8.0
Resolution720x1520 pixels720x1520 pixels720x1520 pixels
general
BrandOppoVivoVivo
ModelA3sY81Y83
Form factorTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.20 x 75.60 x 8.20155.06 x 75.00 x 7.77155.21 x 75.24 x 7.70
Weight (g)168.00146.50150.00
Battery capacity (mAh)423032603260
ColoursRed, Dark PurpleBlackAurora white, Polar Black and CharmRed
Release date-June 2018May 2018
Launched in India-YesYes
Body type-Plastic-
display
Screen size (inches)6.206.226.22
TouchscreenYesYesYes
Resolution720x1520 pixels720x1520 pixels720x1520 pixels
Aspect ratio19:919:919:9
Pixels per inch (PPI)-270270
hardware
Processor1.8GHz octa-core2GHz octa-core2GHz octa-core
Processor makeSnapdragon 450MediaTek MT6762MediaTek Helio P22
RAM2GB3GB4GB
Internal storage16GB32GB64GB
Expandable storageYesYesYes
Expandable storage typemicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)13-megapixel (f/2.2)13-megapixel (f/2.2)
Rear autofocusYesPhase detection autofocusPhase detection autofocus
Rear flashLEDLEDLED
Front camera8-megapixel (f/2.2)5-megapixel (f/2.2)8-megapixel (f/2.2)
software
Operating systemAndroid 8.1 OreoAndroid 8.1Android 8.0
SkinColorOS 5.1FunTouch OS 4.0FunTouch OS 4.0
connectivity
Wi-FiYesYesYes
GPSYesYesYes
BluetoothYes, v 4.20Yes, v 5.00Yes
Micro-USBYesYesYes
Headphones3.5mm3.5mm-
Wi-Fi DirectYesYes-
Wi-Fi standards supported-802.11 b/g/n-
Number of SIMs-22
USB OTG--Yes
FM--Yes
sensors
Compass/ MagnetometerYesYes-
Proximity sensorYesYesYes
AccelerometerYesYes-
Face unlock--Yes
Fingerprint sensor--Yes
Ambient light sensor--Yes
Gyroscope--Yes
sim 1
SIM Type-Nano-SIMNano-SIM
GSM/CDMA-GSMGSM + CDMA
3G-YesYes
4G/ LTE-YesYes
sim 2
SIM Type-Nano-SIMNano-SIM
GSM/CDMA-GSMGSM + CDMA
3G-YesYes
4G/ LTE-YesYes
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