Jumptap-Age-Distribution-Feature-Phone-Users-Aug2013Smartphone penetration stood at roughly 60% of the US mobile market in Q2, according to recent reports from comScore and Nielsen. That still leaves a sizable 40% chunk of the mobile market that hasn’t yet made the switch. So who is still using a feature phone? The demographics of the feature phone user are broken down in a new study [download page] released by Jumptap. As one might expect, the typical feature phone user tends to be older and come from a lower-income household.