The iPhone 6 Plus ($299 and up from the Apple Store) is Apple’s flagship phone, and one of its most popular products, period. Equipped with a 5.5″ Retina HD display, the iPhone 6 Plus boasts ...

Although Apple's iPhone 6 Plus remains in short supply, its portion of total iPhone 6 and 6 Plus sales has increased over the last two weeks, according to analysis of usage-tracking data.