vivo recently confirmed the unveiling date for its upcoming X20 smartphone - September 21. Today, the Chinese manufacturer has shared some new teasers for the device that suggest a special, all-black Mars Edition will debut alongside the standard X20. There's currently no information what other changes (aside from the color) this Mars variant features. A change in screen or chipset is unlikely but it may come with different RAM and storage combo. We expect the X20 to be powered by a Snapdragon 660 chipset with 6GB RAM and sport a 5.8-inch display of 1080x2160 pixel...
Source: http://www.gsmarena.com/vivo_confirms_allblack_mars_edition_x20_variant-news-27211.php
