US iPhone Installed Base Grew 14% in Q3, CIRP Reports

The installed base of iPhones in the U.S. reached 181 million units in Q3, a 3 percent increase from Q2 and a 14 percent increase from Q3 a year earlier, said Consumer Intelligence Research Partners Thursday. The installed base is “leveling off,” it said. It estimates more than four in every 10 iPhones in circulation are at least 3 years old: “These phones reflect the huge impact of the iPhone 6 and 6 Plus, which at the time represented the first new form factor in four years.”