Oppo A3s vs Samsung Galaxy A6 vs Samsung Galaxy A8 (2018) vs Samsung Galaxy A3 (2017) comparison

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key specs
Display6.20-inch5.60-inch5.60-inch4.70-inch
ProcessorQualcomm Snapdragon 4501.6GHz octa-core1.6GHz octa-core1.6GHz octa-core
Front Camera8-megapixel 16-megapixel16-megapixel8-megapixel
Rear Camera13-megapixel + 2-megapixel 16-megapixel16-megapixel13-megapixel
RAM2GB3GB4GB2GB
Storage16GB32GB32GB16GB
Battery Capacity4230mAh3000mAh3000mAh2350mAh
OSAndroid 8.1 OreoAndroid 8.0Android 7.1.1Android 6.0
Resolution720x1520 pixels720x1480 pixels1080x2220 pixels720x1280 pixels
general
BrandOppoSamsungSamsungSamsung
ModelA3sGalaxy A6Galaxy A8 (2018)Galaxy A3 (2017)
Form factorTouchscreenTouchscreenTouchscreenTouchscreen
Dimensions (mm)156.20 x 75.60 x 8.20149.90 x 70.90 x 7.70149.20 x 70.60 x 8.40135.40 x 66.20 x 7.90
Weight (g)168.00-172.00-
Battery capacity (mAh)4230300030002350
ColoursRed, Dark Purple-Black, Orchid Grey, Gold, BlueBlack Sky, Blue Mist, Gold Sand, Peach Cloud
Release date-May 1, 2018December 1, 2017January 1, 2017
Removable battery---No
display
Screen size (inches)6.205.605.604.70
TouchscreenYesYesYesYes
Resolution720x1520 pixels720x1480 pixels1080x2220 pixels720x1280 pixels
Aspect ratio19:9---
hardware
Processor1.8GHz octa-core1.6GHz octa-core1.6GHz octa-core1.6GHz octa-core
Processor makeQualcomm Snapdragon 450---
RAM2GB3GB4GB2GB
Internal storage16GB32GB32GB16GB
Expandable storageYesYesYesYes
Expandable storage typemicroSDmicroSDmicroSDmicroSD
Expandable storage up to (GB)256256256256
camera
Rear camera13-megapixel (f/2.2) + 2-megapixel (f/2.4)16-megapixel16-megapixel13-megapixel
Rear autofocusYes---
Rear flashLEDLEDLED-
Front camera8-megapixel (f/2.2)16-megapixel16-megapixel8-megapixel
software
Operating systemAndroid 8.1 OreoAndroid 8.0Android 7.1.1Android 6.0
SkinColorOS 5.1---
connectivity
Wi-FiYesYesYesYes
GPSYesYesYesYes
BluetoothYes, v 4.20Yes, v 4.20Yes, v 5.00Yes, v 4.20
Micro-USBYes---
Headphones3.5mm-3.5mmYes
Wi-Fi DirectYes--No
Wi-Fi standards supported-802.11 a/b/g/n802.11 a/b/g/n/ac802.11 a/b/g/n/ac
NFC--YesYes
Infrared---No
USB OTG---No
FM---Yes
Number of SIMs---2
Mobile High-Definition Link (MHL)---No
sensors
Compass/ MagnetometerYes-YesNo
Proximity sensorYes-YesYes
AccelerometerYes-YesYes
Gyroscope--YesNo
Barometer--YesYes
Ambient light sensor---No
Temperature sensor---No
sim 1
3G---No
4G/ LTE---No
sim 2
3G---No
4G/ LTE---No
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