(Telecompaper) NTT Docomo has unveiled its summer lineup of mobile devices, with six smartphones, two tablets and two feature phones set to launch later this month in Japan. The lineup includes include two new smartphones: the Galaxy S6 edge SC-04G and Galaxy S6 SC-05G. The new smartphones are equipped with cutting-edge biometric authentication technology, with one smartphone including the world's first iris recognition feature. The devices also feature Premium 4G, Docomo's LTE-Advanced next-generation mobile communication service with up to 225 Mbps (down) and enhanced international LTE roaming capability. They come preinstalled with Android OS 5.0.