Samsung has just launched new editions of its popular Galaxy S4 and Galaxy S4 Mini smartphones, sporting a new black color option and a slight redesign.

Back in December, some rumors started to make rounds claiming that Samsung would launch black editions of its Galaxy S4 flagship and the more compact Galaxy S4 Mini.

While those rumors were unconfirmed, Samsung has now officially listed both the Galaxy S4 Black Edition and the Galaxy S4 Mini Black Edition on its Russian website.

Both smartphones have proved to be very popular worldwide, significantly boosting the company's sales figures. The Galaxy S4 is Samsung's current flagship smartphone and it definitely has the high-end specs and features to make it worthy of the title. The Galaxy S4 Mini, as the name itself suggests, is the smaller version of the flagship, designed for those who want a more compact smartphone at a more affordable price, albeit with lower specifications.

The new black versions of the two smartphones come with the same specifications as the original models. The Samsung Galaxy S4 Black Edition packs a quad-core Qualcomm Snapdragon 600 processor and sports the same specs as the I9505 model. The Galaxy S4 Mini Black Edition also has the same specifications as the international model.

The slight change in design mentioned earlier, meanwhile, refers to a welcome addition. The Black Editions of the Samsung Galaxy S4 and Galaxy S4 Mini now feature faux leather back plates just like the Samsung Galaxy Note 3 flagship phablet, which gives them a more premium look and feel.

According to Samsung's Russian website, the Galaxy S4 Black Edition will go on sale in the country for roughly $660, while the Galaxy S4 Mini Black Edition will cost about $460.

The company has yet to announce whether these Black Edition models will become available in other parts of Europe or the U.S. and, if so, when they will make their debut. The black Galaxy S4 and Galaxy S4 Mini seem available only in Russia at this point, but we'll keep you up to date as soon as we learn more about a potential global release.