One of the features that was rumored for the Galaxy S8, or at least the bigger S8+, was a dual rear camera setup. Since these have become incredibly popular among Android phone makers in the past year, it would've made sense for Samsung to jump on that bandwagon. But in the end, as you probably know, it hasn't. That, however, doesn't mean that it didn't test prototypes with that arrangement. Case in point: the two leaked images you can see below are of a Galaxy S8+ variant with dual rear cameras and no fingerprint sensor to be seen anywhere. Unreleased Samsung Galaxy S8+...
Source: http://www.gsmarena.com/samsung_galaxy_s8_prototype_with_dual_rear_cameras_surfaces_in_handson_photos-news-24555.php
