Some iPhone Duo buyers saw Apple move their delivery estimates earlier on Monday, Oct. 19, four days before the foldable’s Oct. 23 launch. Within a day, though, Japanese outlets reported that many of the improved dates in Japan had reverted to the original estimates.

Pre-orders opened Friday, Oct. 16, and estimates for new orders slipped to January 25 within the first 30 minutes, MacRumors reported. In some countries, including Brazil, estimates reached early February. In a statement shared with CNBC, Apple called demand "nothing short of extraordinary" and said, "We are working hard to get this revolutionary new product into customers’ hands as quickly as possible, and we will continue accepting orders online," according to 9to5Mac .

Earlier dates in Japan and the U.S.

The first reports came from Japan. One user whose order was due in December posted that it now showed October 23, launch day, 9to5Mac reported. Another customer’s December 3 to December 10 window jumped to October 24.…