Apple sold another 48 million iPads and iPhones in the third quarter of 2014, according to its latest earnings report. Its year-over-year iTunes revenue also increased 12% in the quarter, which includes digital book sales.
While iPhone sales were up 13% in the quarter to 35.2 billion units, iPad sales were down 9% versus a year ago to 13.3 billion units.
Both the iPad and iPad mini have large screen and are well-suited for reading books, early iPhones had relatively small screens. The iPhone 5 has a larger screen that may be better for reading. The iPhone 6 is rumored to have two versions, both with even larger screens: a 4.7-inch version and a 5.5-inch version.
At iTunes, sales increased to $4.5 billion, up from $4 billion a year ago. iTunes includes sales of ebook, apps, movies, shows and music.
Shares of Apple stock are trading up slightly on the news.