IPhone 5S who preferred the 4-inch screen size of iPhone 5S, which remained the second-most popular iPhone after the iPhone 6 and ahead of the iPhone 6S. Apple stated in their event that they sold 30 million 4-inch iPhones in 2015, even as that form factor was succeeded as the flagship iPhone by the redesigned larger display 4.7/5.5-inch iPhone 6 and 6 Plus back in September 2014. Furthermore, the 5/5S design was regarded as "long been the golden child of Apple phone design and a benchmark for phones in general" (with the 5S's gold finish adding a premium touch to the 5's
IPhone screens on the first three generations have a resolution of 320×480 (HVGA) at 163 ppi; those on the iPhone 4 and iPhone 4S have a resolution of 640×960 at 326 ppi; the 4-inch models, with 640×1136 at 326 ppi; the 4.7-inch models, with 750×1334 at 326 ppi; the 5.5-inch models, with 1080×1920 at 401 ppi; and the 5.8-inch model X, with 1125×2436 at 458 ppi. The initial models were using twisted-nematic (TN) LCDs. Starting with iPhone 4, the technology was changed to in-plane switching (IPS) LCDs. The iPhone 5 model's screen results in an aspect ratio of approximately 16:9. The