NEW YORK - Apple Inc. on Wednesday unveiled its first foldable iPhone model, called Duo, breaking with its single-screen smartphone design used for many years.

The new model has a larger inner display, as well as an outer display that can still be used when the phone is folded shut. It has a starting price of $1,999, with pre-orders beginning Oct. 16 and the product set to be available from Oct. 23.

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