You might want to wait until November to see the October numbers on that chart. 3 days worth of data, intro data at that, doesn't tell us much about the ongoing success of a product. Especially when 2 of the carriers were selling more of the S4. If the 5c is still in the #2 spot in 2 of the carriers for October then I'd say it is selling well in the US. Hell, 41 days of data doesn't even tell us that much.