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 and orange), and Product Red. The XR is available in three storage capacities: 64GB, 128GB, and 256GB. It is the second iPhone to be released in yellow and blue, the first being the iPhone 5C in 2013. Internationally, the phone supports dual SIMs through a Nano-SIM and an eSIM. In mainland China, Hong Kong and Macau, dual Nano-SIM (in a single tray) is offered instead. Despite receiving some criticism for its display, the XR received generally positive reviews from critics after its release. The XR is Apple’s best selling 2018 iPhone model. According to Apple, the XR battery lasts one-and-a-half