On eve of iPhone 7, a third of iPhones are 3+ years old

A third of the iPhones now in use are three or more years old, an app analytics vendor said a day before Apple unveils the new iPhone 7.
According to Boston-based Localytics, 32% of all iPhones used in August were models that debuted in 2013 or earlier, with that year's iPhone 5S the third-most popular device at 17%. Others, including 2012's iPhone 5 and 2011's iPhone 4S, accounted for single digit shares.
Localytics measured share by tallying the models among more than 100 million iPhones that