New Delhi, Oct. 16 -- Apple's first foldable smartphone, the iPhone Duo, saw preorders sell out within minutes of opening on Friday, with delivery estimates extending from 23 October to late January, according to Yahoo Finance's report.

Priced at $1,999 in the US, the device marks Apple's entry into the foldable smartphone market, where rivals such as Samsung and Google have spent years developing their products and building market share. The early preorder response offers an indication of initial interest in Apple's latest premium device, although the company has not disclosed the number of units available during the first preorder window.

According to the report, the iPhone Duo features a 5.4-inch external display and a 7.6-inch folda...