Apple said it sold more than 10 million iPhone 6 and iPhone 6 Plus devices in the first three days they went on sale — a new record for the tech giant and topping Wall Street estimates that it would move fewer than 9 million.

Moreover, according to Apple, it could have sold even more iPhone 6s if it had the inventories to meet demand. The launch led to the usual long lines at outlets around the world that have accompanied Apple’s major new releases, as fans waited for hours to be among the first to get their hands on the larger-screen smartphones.

SEE ALSO: Apple Unveils Larger iPhone 6 and iPhone 6 Plus

The iPhone 6 has a 4.7-inch screen and the iPhone 6 Plus has a 5.5-inch Retina HD displays, with glass that covers the entire surface and curves around the edges of the thinner devices. The smartphones also feature a 64-bit A8 chip, which Apple claimed makes graphics performance 84 times faster than the original iPhone launched in 2007.

Last week, Apple said that customers had placed more than 4 million pre-orders for the new smartphones in the first 24 hours after they went on sale at 3 a.m. ET on Sept. 12, also a company record.

Initial sales “exceeded our expectations for the launch weekend, and we couldn’t be happier,” Apple chief Tim Cook said in a statement. “While our team managed the manufacturing ramp better than ever before, we could have sold many more iPhones with greater supply and we are working hard to fill orders as quickly as possible.”

Apple has said some online orders may not be shipping to customers until October.

The iPhone 6 models launched Sept. 19 in the U.S., Australia, Canada, France, Germany, Hong Kong, Japan, Puerto Rico, Singapore and the U.K. The smartphones are scheduled to be available in more than 20 additional countries on Sept. 26 and are to be available in 115 countries by the end of the year.