Digital Trends – Chinaâs ZTE isnât exactly a household name in the United States, but itâs important to remember the company is the fourth-largest handset maker in the world, largely on the basis of inexpensive feature phones rolled out in China and other Asian markets, many of which feature dual-sim capabilities so users can easily switch between mobile operators. However, ZTE knows the feature phone market is fading in the face of smartphonesâand plans to aggressively pursue the smartphone markets not just in China, but the United States as well.