The iPhone 4S sold 4 million by it's first weekend. The iPhone 5 sold 5 million. However...
The iPhone 5 launched in more countries. And the iPhone 4S did not launch on carriers like Verizon or Sprint.
While theoretically speaking the iPhone 5 appears to be "selling better", given these facts the argument can be made that technically, the iPhone 5 is not selling better at all. More like equal or slightly under.







