The total exceeds the 10 million sold in the opening weekend last year for the previous versions of Apple's smartphone.
Research firm predicts global shipments will rise around 10 percent this year, compared with more than 27 percent in 2014. One reason? Demand for devices in China is falling.
In a rare move, Apple's CEO emails Jim Cramer, a host on the CBNC business network, to reassure investors about sales in a very important region.
The carrier continues its torrid pace of subscriber growth amid stiff competition in the wireless business.
The microblogger's executives say they have no idea when they could see "significant" additions to its monthly active users metric.
AT&T tops expectations for its second-quarter earnings, and manages to grow its base despite losing core phone customers.
Microsoft's new OS clipped off a 6.6 percent slice of desktop OS traffic in September as measured by Web tracker NetMarketShare, just a small increase from August.
But the nation's largest wireless did post a profit for the second quarter and phone subscriber growth that topped expectations.
The company's announcement follows a report from research firm TrendForce revealing that Huawei is now China's top smartphone brand.
Also coming soon: Skylake, the code name for Intel's sixth-generation Core processor aimed at PCs, is slated to drop during the second half of 2015.