The iPhone 11 is a smartphone designed, developed, and marketed by Apple Inc. It is the thirteenth generation lower-priced iPhone, succeeding the iPhone XR. It was unveiled on September 10, 2019, alongside the higher-end iPhone 11 Pro flagship at the Steve Jobs Theater in Apple Park, Cupertino by Apple CEO Tim Cook. Pre-orders began on September 13, 2019, and was officially released on September 20, 2019, one day after the official public release of iOS 13. The prominent changes compared with the iPhone XR are the Apple A13 Bionic chip, and an ultra wide dual camera system. While the iPhone 11 Pro comes with an 18W Lightning to USB-C fast charger, the iPhone 11 comes with the same 5W charger found on previous iPhones, even though this faster charger is compatible with both models.