On Sept. 12, Apple (NASDAQ: AAPL) announced three new iPhones: the iPhone XR, iPhone XS, and iPhone XS Max. The iPhone XS was essentially an upgrade of last year's iPhone X, and the iPhone XS Max is a much bigger version of the XS (representing a new screen size from Apple). The iPhone XR is a lower-cost alternative to the iPhone XS and iPhone XS Max, with a screen size that's in between the two. We'll get a sense of how well Apple is expecting these phones to sell when the company provides its financial guidance for the first quarter of its fiscal year 2019 on Nov.