Rumors of Apple's next iPhone come in bounds, and have long posited that the handset will come in two model sizes: one with a 4.7-inch display, the other with a 5.5-inch display. Both of the iPhone 6 versions will be hitting production some time next month, sources have said.
The information comes from sources that spoke to Bloomberg, stating production will start in China for both the 4.7-inch and 5.5-inch models. The larger of the two models in particular is said to be difficult to produce, slowing things down.
The 4.7-inch iPhone 6 model, according to the sources, may be available "around September". The larger model could also be available at the same time, but its production is said to be harder, and this is keeping production efficiency down.
As a result, work has to be done to increase the efficiency so that production volume will go up to handle demand. For other recent news about Apple's iPhone 6, check out the timeline below, and hit up our SlashGear Apple hub.