NEW YORK (AP) — Apple had more than 4 million advance orders of its new, larger iPhones in the first 24 hours, exceeding its initial supply, the company said Monday.

The iPhone 6 and iPhone 6 Plus will be delivered to customers starting Friday and throughout September, but many won’t be delivered until October, Apple said. Phones will still be available Friday on a walk-in basis at Apple retail stores and from various wireless carriers and authorized Apple resellers.