Oppo A3s vs Xiaomi Redmi 6 Pro vs Vivo Y83 comparison

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general
Form factorTouchscreenTouchscreenTouchscreen-
Dimensions (mm)156.20 x 75.60 x 8.20149.33 x 71.68 x 8.75155.21 x 75.24 x 7.70-
Weight (g)168.00178.00--
Battery capacity (mAh)423040003260-
ColoursRed, Dark PurpleGold, Blue, Black, RedAurora white, Polar Black and CharmRed-
Release date-June 2018May 2018-
Launched in India-Yes--
Body type-Metal--
Removable battery-No--
display
Screen size (inches)6.205.846.22-
TouchscreenYesYesYes-
Resolution720x1520 pixels1080x2280 pixels720x1520 pixels-
Aspect ratio19:919:9--
Pixels per inch (PPI)-432--
hardware
Processor1.8GHz octa-core2GHz octa-core2GHz octa-core-
Processor makeSnapdragon 450Qualcomm Snapdragon 625MediaTek Helio P22-
RAM2GB3GB4GB-
Internal storage16GB32GB64GB-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)256256256-
Dedicated microSD slot-Yes--
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)12-megapixel (f/2.2, 1.25-micron) + 5-megapixel13-megapixel-
Rear autofocusYesPhase detection autofocus--
Rear flashLEDLEDLED-
Front camera8-megapixel (f/2.2)5-megapixel8-megapixel-
software
Operating systemAndroid 8.1 OreoAndroid 8.1 OreoAndroid 8.0-
SkinColorOS 5.1MIUI 9.6FunTouch OS 4.0-
connectivity
Wi-FiYesYesYes-
GPSYesYesYes-
BluetoothYes, v 4.20Yes, v 4.20Yes-
Micro-USBYesYes--
Headphones3.5mm3.5mm--
Wi-Fi standards supported-802.11 a/b/g/n--
USB OTG-YesYes-
FM-Yes--
Number of SIMs-22-
Active 4G on both SIM cards-Yes--
sensors
Compass/ MagnetometerYesYes--
Proximity sensorYesYesYes-
AccelerometerYesYes--
Face unlock-Yes--
Fingerprint sensor-Yes--
Ambient light sensor-YesYes-
Gyroscope--Yes-
sim 1
SIM Type-Nano-SIM--
GSM/CDMA-GSMGSM + CDMA-
3G-Yes--
4G/ LTE-Yes--
sim 2
SIM Type-Nano-SIM--
GSM/CDMA-GSMGSM + CDMA-
3G-Yes--
4G/ LTE-Yes--