ABOUT IT.
This is samsung Galaxy j4 . There is Exynos 7570 for better performance and it has 5.5 super AMOLED display with 720 p Resolution which is not really that much good. It has 16 GB of internal and and 2 GB of RAM and the because of RAM its performance will be very bad . About it camera you will get 13 MP of rear camera and 5 MP of front camera which not that give you good quality photo. It has 3000 mAh battery and about the android it has 8.0 Oreo.
MY EXPERIENCE.
This phone is only known as samsung product and there is only some good features in that phone which is not value for money phone after reboot that phone you will see there is only 800 MB of RAM is available in that phone that why you can not use heavy game and high graphic applications and there is only 9.5 GB free space in phone(Thats not good) .
And the screen is also not that much good there is only super AMOLED display with 720 P resolution which will not give you better experience and about the performance Exynos 7570 which is last 2 years processor.
MY OPINION.
You dont have to buy that phone because there is nothing to use in that phone compare than others phones like oppo real me 1 and xiaomi Y2 and note 5.
so, Dont buy that phone because there is only samsung name not other thing. Thanking you.