https://www.theverge.com/2018/11/1/18053782/apple-earnings-q4-2018-stop-ipad-iphone-mac-unit-sales-disclosure

During its Q4 earnings call, Apple’s chief financial officer Luca Maestri announced that the company will no longer report unit sales of its main hardware divisions, including iPhone, iPad, and Mac. This is the same as protocols Apple already follows for its smaller devices, such as the Apple Watch, AirPods, and HomePod, which are bundled under the “Other Products” category.