[iPhone Duo sold out in pre-sale: The highest premium was 7,143 yuan, and the auction price was nearly 1,000 yuan] "Science and Technology Innovation Board Daily" reported on the 16th that at 8 pm on October 16, Apple's first folding screen mobile phone iPhone Duo officially opened for pre-order and quickly sold out in multiple channels. A reporter from "Kechuangban Daily" noticed that on the Dewu App, the pre-sale market price of multiple versions of iPhone Duo has exceeded 20,000 yuan. Among them, the 1TB black version has a transaction price of nearly 29,000 yuan, which is 7,143 yuan higher than the launch price; the 256GB black version has an increase of nearly 40%. At the same time, "Kechuangban Daily" saw on the Xianyu e-commerce platform that many merchants have posted links for proxy auctions of iPhone Duo, with prices ranging from 700 yuan to 1,000 yuan. (Kechuangban Daily reporter Li Jiayi)