Re: Obvious way to differentiate?
Updates for five years?
Ok, I'm going to be *that guy* and point out that the latest 11.3 version of iOS runs (barely) on the 5S, a phone released in Sept 2013. So not quite 5 years yet, but close. Fruit-huggers always manage to be subtly irritating, but updates are one area where Cupertino has always managed to blow the green bot out of the park.