Samsung Galaxy J7 (2018) vs Oppo A71 (2018) vs Samsung Galaxy J7 Pro comparison

Compare Samsung Galaxy J7 (2018)
Compare Oppo A71 (2018)
Compare Samsung Galaxy J7 Pro
general
Release dateJune 2018January 2018June 2017-
Form factorTouchscreenTouchscreenTouchscreen-
ColoursBlackBlack, GoldBlack, Gold-
Dimensions (mm)-148.10 x 73.80 x 7.60152.40 x 74.70 x 7.90-
Weight (g)-137.00--
Battery capacity (mAh)-30003600-
Removable battery--No-
display
Screen size (inches)5.505.205.50-
TouchscreenYesYesYes-
Resolution720x1080 pixels720x1280 pixels1080x1920 pixels-
Aspect ratio16:9---
Pixels per inch (PPI)--401-
hardware
Processordual-core1.8GHz octa-core1.6GHz octa-core-
Expandable storageYesYesYes-
Expandable storage typemicroSDmicroSDmicroSD-
Expandable storage up to (GB)256256128-
Processor make-Qualcomm Snapdragon 450Exynos 7870-
RAM-2GB3GB-
Internal storage-16GB64GB-
camera
Rear camera13-megapixel (f/1.9)13-megapixel13-megapixel-
Rear flashLEDLEDLED-
Front camera13-megapixel (f/1.9)5-megapixel13-megapixel-
Front flash--LED-
software
Operating systemAndroidAndroid 7.1Android 7.0-
Skin-ColorOS 3.2--
connectivity
Wi-FiYesYesYes-
GPSYes-Yes-
BluetoothYesYes, v 4.20Yes, v 4.10-
Micro-USBYes---
Headphones3.5mm3.5mm3.5mm-
Number of SIMs222-
Wi-Fi standards supported-802.11 b/g/n802.11 b/g/n-
USB OTG-YesYes-
FM-YesNo-
NFC--Yes-
Infrared--No-
sim 1
SIM TypeNano-SIMNano-SIM--
GSM/CDMAGSMGSMGSM-
3GYesYesNo-
4G/ LTEYesYesYes-
sim 2
SIM TypeNano-SIMNano-SIM--
GSM/CDMAGSMGSM--
3GYesYesNo-
4G/ LTEYesYesYes-
sensors
AccelerometerYesYesYes-
Compass/ Magnetometer-YesYes-
Proximity sensor-YesYes-
Ambient light sensor-YesYes-
Gyroscope--Yes-
Barometer--No-
Temperature sensor--No-