Welcome to the super cycle: Apple just had the best quarter in the history of the smartphone

iPhone accounted for nearly 59% of Apple’s revenue during the holiday quarter. The iPhone is booming, too: Sales were up 17% year-over-year to a whopping $65.6 billion in a single quarter.

That’s a big improvement from last year’s holiday quarter, when sales were up only 7.6% from the year ago. Apple doesn’t provide unit sales for its products anymore, but according to an estimate from research firm IDC, Apple shipped 90.1 million phones during the quarter. That’s the largest number in any single quarter since IDC started tracking smartphones, analyst Francisco Jeronimo said.