The boost in sales means the 5s is selling at between two and three times the rate of the previous iPhone 5. The 5s is growing at a rate of about 0.75 and 1 percent per week.
And it's not just the 5s that's getting in on the good sales action. The iPhone 5c -- the less expensive, color-case version of the 5s -- has a growth of about 0.25 percent and 0.5 percent per week, the same as the older iPhone 5.
The 5c is possibly “doing a reasonable job of taking over the mid-end part of the smartphone market," Mixpanel CEO Suhail Doshi said.
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