You're correct. That article tried to (and apparently did) fool people by mixing up various stats.
First it said that Samsung high end sales were flat between 2Q and 3Q 2013. Then it bogusly contrasted that to a 26% Apple sales increase between 3Q 2012 and 3Q 2013... a whole year apart instead of just a quarter.
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What the article cleverly left out was that:
Apple's sales were also flat between 2Q and 3Q 2013. So there was no difference between quarters for both it and Samsung.
The big difference is that year over year between 3Q 2012 and 2013, Samsung's total smartphone sales grew 55%, higher than the industry average 45%. So Samsung had a TWICE as big year-over-year increase as the lower than average Apple's 26% cited in the AI article.
http://venturebeat.com/2013/10/28/s...n-q3-and-samsung-grew-twice-as-fast-as-apple/