The earnings report will give us our first real look at iPhone X sales, as well as sales of the iPhone 8 and the iPhone 8 Plus throughout the holiday quarter. The iPhone X did not go on sale until November 3, and it was not included in Apple's fourth quarter earnings report.
Guidance for the first fiscal quarter of 2018 includes expected revenue of $84 to $87 billion and gross margin between 38 and 38.5 percent. It will be a record setting quarter even at the low end of the guidance range, as Apple saw $78.4 billion in revenue in Q1 2017.
Apple's quarterly earnings statement will be released at 1:30 p.m. Pacific/4:30 p.m. Eastern, with a conference call to discuss the report taking place at 2:00 p.m. Pacific/5:00 p.m. Eastern. MacRumors will provide coverage of both the earnings release and conference call on February 1.