The Samsung galaxy j7 prime is one of the Samsungs best device which is sold highly in India.It comes with 13 MP camera with 1.7 f aperture and 8 MP front cam eith also 1.7 f aperture.The processar used in it is samsungs exynos 7870 1.8 GHz octacore processar helps for gaming as well as multitasking . This phone is also came with fingerprint scanner which helps me for security purpose.I didnt notice any problrm in this scanner. I am using this phone till 1 year I did not see any queries.so this is killer smartphone by samsung.You can buy it even in 2018.