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 5S took rival Android smartphone makers by surprise, particularly Qualcomm whose own 64-bit system-on-chip was not released until 2015. Most reviewers recommended the iPhone 5S over the iPhone 5C which was released at the same time. The 5C retained almost the same hardware as the discontinued iPhone 5, while the iPhone 5S featured substantially improved performance/features thanks to its new 64-bit A7 processor, as well as extra storage space, all for a relatively small additional upfront cost over the iPhone 5C (US$650 versus US$550 in March 2014). This was especially the case when iOS 8 was released and both iPhone 5S