NEW YORK: With record pre-booking of four million units in the first 24 hours, Apple fans may have to wait for some time before they get their hands on the latest iPhone 6 and iPhone 6 Plus as delivery is likely to stretch on to October.

The new iPhone 6 and iPhone 6 Plus is available in 16 GB, 64 GB and 128 GB versions

Apple said it received a "record number" of first day pre- orders of iPhone 6 and iPhone 6 Plus, the biggest advancements in iPhone history with over four million in the first 24 hours.           

"Demand for the new iPhones exceeds the initial pre-order supply and while a significant amount will be delivered to customers beginning on Friday and throughout September, many iPhone pre-orders are scheduled to be delivered in October," Apple said in a statement.

Additional supply of iPhone 6 and iPhone 6 Plus will be available to walk-in customers on September 19 at Apple retail stores, it added.

Last year, Apple sold nine million units of iPhone 5s and iPhone 5c models within three days after the launch of the new iPhones on September 20.

The iPhone 6 and iPhone 6 Plus will be available to customers in India from October 17, less than a month from its global launch.

Also Read: Is Apple's Digital Wallet Set To Kill The Card Swipe?