by Daniel SILVA / Erwan LUCAS BARACELONA, Spain (AFP) — South Korean tech giants Samsung Electronics and LG unveiled Sunday new smartphones with better cameras and turned to virtual reality to boost interest in their headsets at a time of slowing sales. Samsung launched two versions of its flagship phone, the flat screen Galaxy S7 and the curved screen Galaxy S7 edge, with cameras that can take better pictures under low-light conditions. The company, the […]