The rumor mill on Apple's newest smartphone and purported iWatch is starting to heat up with hints at possible manufacturing partners and release dates. Rumors are already starting to roll in about Apple's purported iPhone 6, according to Apple Insider. The newest claims come from Chinese analyst Sun Changxu, who told Chinese-language Web site QQ Tech that the smartphone will come in two large-screen sizes and could be unveiled as soon as June. According to Changxu, the upcoming iPhone 6 will most likely have a 4.7-inch, 1,136-pixel-by-640 pixel display. Changxu said that Apple could release another smartphone shortly later that has a higher-resolution 5.7-inch display. Word has it that Apple will reveal its new smartphone at its Worldwide Developers Conference in June. Several sources have already speculated that Apple's next iPhone will come in a larger size. In October, a handful of reports said the screen size will jump to almost 5 inches from the current 4 inches. Some analysts even pegged possible screen sizes at anywhere from 5.7 inches to 6 inches. Similarly, a report last week from DisplaySearch said the iPhone 6 could have a 5.5-inch 1920 pixel-by-1080 pixel display. During an event launching the iPhone on China Mobile last week, Apple CEO Tim Cook was asked whether Apple might launch an iPhone with a bigger screen or flexible display. All Cook would say, in essence, is that customers can expect some nice updates in the future. "We never talk about future things," Cook said. "We have great things we are working on but we want to keep them secret. That way you will be so much happier when you see it." Meanwhile, the rumored iWatch is also getting its share of speculation. According to G for Games, Apple's supposed computerized wristwatch is said to have a flexible OLED display from LG. Reportedly, LG has finalized a partnership with Apple to make 1.52-inch OLED displays for the watch. Production is said to begin later this year. There's been talk of a purported iWatch for about a year now, yet no conclusive signs of any device have appeared. In October it was rumored that LG Display was close to signing a deal with Apple to provide the OLED displays. However, the release of the device is said to have been delayed due to screen technology decisions, battery issues, and corporate shuffling.