The iPhone 5S is outselling the lower-cost iPhone 5C by more than two to one.

According to Consumer Intelligence Research Partners data — as first reported by AllThingsD — the 5S made up 64% of iPhone sales since the latest-generation devices launched in September. The 5C accounted for 27%, while the iPhone 4S made up 9%.

The data comes several weeks after analytics firm Localytics reported a 3.5 to 1 lead for the iPhone 5S over the 5C.