|English: The logo for Apple Computer, now Apple Inc.. The design of the logo started in 1977 designed by Rob Janoff with the rainbow color theme used until 1999 when Apple stopped using the rainbow color theme and used a few different color themes for the same design. (Photo credit: Wikipedia)|
The company said demand had outstripped supply of the new iPhone 6 and iPhone 6 Plus, which feature larger screens and longer battery life. Deliveries of pre-orders will begin on Friday and will continue through October.
Bumper first-day pre-orders point to first-weekend sales of up to 10 million units, analysts estimated.
"Assuming preorders are similar to the 40 percent of first weekend sales for the iPhone 5, this would imply iPhone 6/6Plus first weekend sales could be around 10 million," Wells Fargo Securities analysts wrote in a note.
About 2 million pre-orders were received for the iPhone 5 in the first 24 hours after it went on sale in September 2012. Apple sold 5 million of these phones in the first weekend.
Apple sold 9 million iPhone 5Ss and 5Cs, which were launched last year, in the first three days in stores. The company did not reveal pre-order numbers for these phones.
Raymond James analysts said they expect sales of iPhone 6 and iPhone 6 Plus to top 9 million in the first weekend.
"Apple will be selling every iPhone it can make, at least through October. Because of this, the first weekend sales are typically more indicative of supply than demand," they said.
The company routinely grapples with iPhone supply constraints, particularly in years that involve a smartphone re-design.
Apple's website showed last week that the larger 5.5-inch "Plus" models displayed a wait time of up to a month. The 4.7-inch version was available for delivery on Sept. 19.
Janney Capital Markets analysts said the large number of pre-orders was due to "pent-up demand" for bigger iPhone screens.