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Oppo A55 vs Samsung Galaxy J4 comparison

 Compare Oppo A55
Oppo A55
Compare Samsung Galaxy J4
Samsung Galaxy J4
key specs
Display6.51-inch5.50-inch
ProcessorMediaTek Helio G35Samsung Exynos 7570
Front Camera16-megapixel5-megapixel
Rear Camera50-megapixel + 2-megapixel + 2-megapixel 13-megapixel
RAM4GB, 6GB2GB
Storage64GB, 128GB16GB
Battery Capacity5000mAh3000mAh
OSAndroid 11Android 8.0
Resolution720x1600 pixels720x1280 pixels
general
BrandOPPOSamsung
ModelOppo A55Galaxy J4
Release dateOctober 1, 2021May 1, 2018
Launched in IndiaYesYes
Form factorTouchscreenTouchscreen
Dimensions (mm)163.60 x 75.70 x 8.40151.70 x 77.20 x 8.10
Weight (g)193.00175.00
Battery capacity (mAh)50003000
Fast chargingProprietary-
ColoursRainbow Blue, Starry BlackBlack, Orchid Gray, Gold
Removable battery-Yes
display
Refresh Rate60 Hz-
Screen size (inches)6.515.50
TouchscreenYesYes
Resolution720x1600 pixels720x1280 pixels
Aspect ratio20:916:9
hardware
Processordual-core1.4GHz quad-core
Processor makeMediaTek Helio G35Samsung Exynos 7570
RAM4GB, 6GB2GB
Internal storage64GB, 128GB16GB
Expandable storageYesYes
Expandable storage typemicroSDmicroSD
Expandable storage up to (GB)256256
Dedicated microSD slotYes-
camera
Rear camera50-megapixel (f/1.8) + 2-megapixel (f/2.4) + 2-megapixel (f/2.4)13-megapixel (f/1.9)
No. of Rear Cameras3-
Rear autofocusYesYes
Rear flashYesLED
Front camera16-megapixel5-megapixel (f/2.2)
No. of Front Cameras1-
Front flash-LED
software
Operating systemAndroid 11Android 8.0
SkinColorOS 11.1-
connectivity
Wi-FiYesYes
Wi-Fi standards supported802.11 a/b/g/n/ac802.11 b/g/n
GPSYesYes
BluetoothYes, v 5.00Yes, v 4.20
USB OTGYes-
USB Type-CYes-
Headphones3.5mm-
Number of SIMs22
Micro-USB-Yes
FM-Yes
sim 1
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sim 2
SIM TypeNano-SIMMicro-SIM
GSM/CDMAGSMGSM
3GYesYes
4G/ LTEYesYes
sensors
Fingerprint sensorYes-
Compass/ MagnetometerYes-
Proximity sensorYesYes
AccelerometerYesYes
Ambient light sensorYes-

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