post #241 of 241
From wiki: Unfortunately, this one only goes up to 2011Q1

Worldwide iPhone sales by quarter in millions.
(blue) Original iPhone
(green) iPhone 3G
(orange) iPhone 3GS
(purple) iPhone 4

But from AI (source NPD): "NPD's data found that the iPhone 4S outsold the iPhone 3GS by five to one"

That's US only, but I cannot find the global sales figures.