Following the continued growth of smartphones in the US and increasing competition between Samsung and Apple, the two companies saw combined growth between 2012 and 2013 amounting to 68% of the US smartphone market. That’s according to data provided by The NPD Group which reports overall smartphone growth increased from 52% to 60% in Q4 of 2012 and 2013, respectively. NPD reports Samsung rose from 22% to 26% in Q4 2012 to 2013 among US smartphone users.

Samsung is not alone among companies seeing smartphone growth as the market increased, but almost: Apple, too, saw its share go up from 35% to 42% from Q4 2012 to Q4 2013 illustrating its success as well.

But that success doesn’t spread equally.

Smartphone Ownership NPD 2013 Q4 2012

As illustrated by NPD’s data, other handset makers including Motorola, LG, HTC, and BlackBerry saw year-over-year smartphone ownership in the US actually decrease despite a growing market.

What was true in 2012 remained true in 2013: It’s not Android versus iOS we’re watching in smartphones, but rather Samsung versus Apple… and more so than ever.