Samsung unveils Tizen-based wearable devices Samsung Electronics Co., the world’s largest maker of smartphones, unveiled its first wearable devices that run on its own mobile operating system Tizen in Spain on Sunday, as it seeks to break its heavy reliance on Google Inc.’s Android software. The unveiling of the Samsung Gear 2 and Gear 2 Neo, Samsung’s successors to the Galaxy Gear, which was released in September last year, also comes as…