Apple has seen a record-high in pre-orders this year for the iPhone 6 and the iPhone 6 Plus. Supplies are dropping fast, and shipping estimates are slipping accordingly.

Most Space Gray models of the iPhone 6 for AT&T and Sprint are available for regular September 19th delivery via the Apple online store. However, most Gold and Silver models are still estimated at 7-10 business days.

Some iPhone 6 models are still available through their respective carriers, but most have sold out, showing shipping estimates of 7 to 10 days.

Shipping estimates for Apple’s larger 5.5-inch iPhone 6 Plus slipped to 7-10 days almost immediately after pre-orders went live. Within a few hours they slipped again to 3 to 4 weeks, where they still remain. This means those who choose to pre-order the iPhone 6 Plus will likely not receive their phones until October.

Estimates are nearly identical in other countries, particularly the UK, with some iPhone 6 models extending to 3 to 4 weeks also.

The iPhone 6 and iPhone 6 Plus will be available to purchase on launch day (September 19th) from any Apple retail store. However, supplies are likely limited, and lines will likely be long, as people often wait for several hours in line prior to store opening.

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