【Tech24H】Apple held a product launch event at its headquarters in Cupertino, California, on September 9, unveiling its first foldable phone, the iPhone Duo. According to the company, when folded, the phone is similar in size and shape to a passport; when unfolded, its display is 7.6 inches, the largest display on any current Apple phone. This was the first product launch event hosted by Apple’s new CEO John Ternus since he took office. The launch of the iPhone Duo marks Apple’s official entry into the foldable smartphone market. The new product will accept pre-orders at 8 p.m. on October 16 and will officially go on sale on October 23. [ By Zhang Liyan | Tang Ruohan ]