In our featured discussion on the Macworld Podcast, the staff talks about 5G on the iPhone: What is it? When is it coming? Will Apple be late to the 5G party? When should you really start to care about it? We also talk about the new USB4 spec, Apple's Shot on iPhone Challenge, and sleep tracking on the Apple Watch. And don't miss the Two-minute Tip for the Apple Watch, and hot takes from Macworld readers.