Phone-y baloney

Phones, like  many other things, have gone through multitudinous changes and each change comes faster than the last.  In the case of 4G, the change comes before it’s even arrived, since not many places even have 4G, but the companies are selling it as if it were universal already!  Although I don’t have a smart phone (I like to be smarter than my phone), here’s a pictorial progression, based on phones we actually own.