The iPhone maker's parts suppliers are reportedly preparing to begin mass production of displays for a larger iPhone next month.
The news comes amid reports of Apple planning the launch of two larger iPhones have surfaced.
According to the Verge, multiple news outlets have previously reported that Apple is planning to launch two larger iPhones this year, one with around a 4.7-inch display and one with around a 5.5-inch display.
Meanwhile, the mass production on the larger of the two iPhone screens may be delayed over production issues, the report added.