The samsung j7 prime is one the best samsungs device which is sold highly in india.It comes with 13camera with 1.7 f aperture and 8mp front cam eith also 1.7f aperture.The processer used in the samsung exynos 7870 1.8 GHz octacore processar helps for gaming as well as multitasking.This phone is aslo came with fingerprint scanner which helps me for security purpose. I did not notice any problem in this scanner. I am using this phone till 2months I did not see any queries.so this is killer smartphone by samsung.You can buy it to use gd .