|Mr Lei's speech came ahead of the launch of a wide range of new Xiaomi devices, including the Mix 4 smartphone, its latest television, tablet computer and smart speaker. It also unveiled a 'CyberDog' four-legged robot, which it described as its "first foray into quadruped robotics for the open-source community and developers worldwide. (Photo by= Getty Images)| [Asia News = Reporter Reakkana] Chinese technology giant Xiaomi has said it plans to be the world's biggest smartphone maker within three years. BBC reported that the comments by the Beijing-based firm's boss come after it recently overtook Apple to become the second-largest...