Samsung just unveiled the successors to the Galaxy J3 (2017) and Galaxy J7 (2017) but revealed little about their hardware. The Samsung Galaxy J3 (2018) and J7 (2018) are still mid-range devices as evident by just looking at their photos, but details are scarce. Samsung Galaxy J7 (2018) The more interesting Samsung Galaxy J7 (2018), the model brings almost identical specs to its predecessor, at least when it comes to the camera setup. We've got the same 13MP main sensor with f/1.7 lens and a 13MP front-facing camera, again with f/1.9 aperture. On paper, the Galaxy J7 (2018)...
Source: https://www.gsmarena.com/samsung_galaxy_j3_2018_and_j7_2018_announced__vague_specs_and_no_pricing-news-31566.php