The water-resistant Galaxy S4 Active released this summer ended up being a hit from Samsung, so much so that the Korean manufacturer is planning on releasing a mini version to follow in its footsteps. Much like the Galaxy S4 mini, the Active mini (identified by its GT-I8580 model name) is set to feature not only smaller dimensions than its counterpart, but also less potent hardware....
Source: http://www.gsmarena.com/samsung_galaxy_s4_active_mini_version_in_the_works-news-7070.php