Apple will launch the 4.7-inch version of its iPhone 6 in August, with a larger phablet-sized model coming in September.
According to a report from the Economic Daily News, launch of the larger 5.5-inch iPhone 6 is lagging behind its smaller sibling because of delays in Sapphire display production and battery availability.
The August timeframe would be a month earlier than earlier reports had suggested.
Apple intends to produce 80 million iPhone 6 units in 2014.
Apple could not be reached for comment prior to press time.
The news comes as reports emerged today that Apple is in talks to buy headphone maker Beats for $3.2 billion.
Apple currently takes home 15.5 percent share of the smarpthone market, led by Samsung, which snags a 30.2 percent according to research firm IDC.
Shares of Apple were down a little less than a point in early trading Friday to $582.67.