Uptick in iPhone 6 Plus Sales in China Could Spell Strong Earnings for Apple For the third installment of our Data Desk series, we look at how the US holiday sales and increased availability of the iPhone 6 Plus affected its market share in two of its biggest markets – the US and China–with a specific focus on China. The relative market share of the 6 Plus is so important, particularly in China, for a few reasons. First, UBS estimates that for the first time ever, iPhone sales in the December quarter in China outstripped those in the US. Plus (pun intended), Morgan Stanley estimates that the 6 Plus’ profit margins are as much as 61% higher than that of the iPhone 6. From data we have collected and corroborating third party reports, it seems China’s ravenous appetite for the 6 Plus will buoy Apple’s next reported earnings.