That's quite a small window, smaller than
most upgrade cycles are these days.
Not exact matches
E-Readers are for the
most part, immune to the same sort of
upgrade cycle we see with smartphones and tablets.
Many of them offer multiple
upgrades that you can quickly
cycle through to use the one you
most need for any given situation.
There are plenty of reasons that Android would be surging while iOS would stay flat, or even decline, the
most obvious being that Apple hasn't released a major
upgrade for the iPhone in two
cycles.
They do not share the same
upgrade cycle as phones for
most people.
Motorola, now owned by Lenovo, has quite the number of devices under its belt that theoretically should be
upgraded to Android 7.0 Nougat — if you use the 18 - month life
cycle most manufacturers tend to follow.