The iPhone 6 smartphone is set to feature a curved screen of at least 4.7in in size, according to a report.A person familiar with Apple's plans told Bloomberg that the firm is developing new iPhone designs which feature bigger screens made of curved glass. Apple will supposedly launch two models in the second half of next year with the design. See also: iPhone 6 release date: When will the iPhone 6 be launched?The source says that the glass which 'curves downward at the edges'. Upcoming iPhones will also include sensors which can detect different levels of pressure. They even reveal that the two new iPhones, one of which will presumably be the iPhone 6, will have 4.7in and 5.5in screens making them Apple's la