• The article discusses Apple's recent announcement that it will begin using its own custom-designed 5G modems in future iPhones, replacing the Qualcomm modems it has used in the past. This move is seen as a significant step towards Apple's goal of becoming more self-reliant and reducing its dependence on third-party suppliers for critical components in its devices.

• The transition to in-house 5G modems is expected to take several years, with the first iPhones featuring Apple's own 5G modems likely to be released in 2023 or 2024. This will give Apple more control over the design and performance of the 5G technology in its devices, potentially allowing for better integration and optimization with the rest of the iPhone's hardware and software.

• The decision to develop its own 5G modems is part of Apple's broader strategy to reduce its reliance on external suppliers and increase its vertical integration. This includes the company's efforts to design its own processors, graphics chips, and other key components for its devices, which has helped it gain more control over the overall user experience and performance of its products.