Reports from several observers of the electronics manufacturing market suggest that Samsung (Seoul, South Korea) is developing a carbon fiber body for the company's Galaxy S5 smartphone, due out on the market within the next year. The body of the Galaxy S4, currently on the market, is molded of neat plastic and is susceptible to cracking and breaking.
Switching to carbon fiber would make sense for Samsung. The company announced in June 2013 that it was forming a joint venture with SGL Group (Wiesbaden, Germany) to develop new industrial and electronic applications with carbon composite materials for Samsung and the Korean market. The joint venture operates under the name Samsung SGL Carbon Composite Materials.
Reports indicate that only the S5 would use a carbon fiber body. Other lower-end devices would continue to use plastic.