Fortune:

Samsung Electronics Co. suffered another blow to its efforts to cut the dependency of its smartphone business on Google Inc.’s Android operating system, postponing the launch of a new model that runs on its own Tizen software.

The news is the latest disappointment for the Korean giant which is trying to defend its position as the world’s largest maker of smartphones from the twin challenges of Apple Inc. and, at the other end of the market range, Chinese companies such as Huawei, ZTE and Xiaomi.

Samsung is getting squeezed.