IPhone (1st generation) $499, the original launch price of the 4 GB model. Apple released an SDK on March 6, 2008, allowing developers to create the apps that would be available starting in iPhone OS version 2.0, a free upgrade for iPhone users. On June 9, Apple announced the iPhone 3G, which began shipping July 11. The original iPhone was discontinued 4 days later; total sales volume came to 6,124,000 units. During release, the iPhone was marketed as running "OS X". The name of the operating system was revealed as iPhone OS with the release of the iPhone SDK. The original iPhone supported
IPhone XR hours longer than its direct predecessor, the iPhone 8 Plus, most likely due to the lower resolution display and removal of 3D Touch. The XR has a similar design to the iPhone X and iPhone XS. However, it has larger bezels (due to limitations with the LCD), an aluminum frame, and is available in a wide variety of colors. Similar to other X-branded iPhones, all models come with a black front. The XR has an IP67 rating for dust and water resistance, which means it can take up to 1 meter for 30 minutes. The XR has similar hardware to