> For me it's not arbitrary. An android device is a general purpose handheld touchscreen computer that happens to be used for music

Android is just an operating system. I’ve developed and shipped Android based devices that have no screen at all.

Android and Linux are both used for a wide variety of embedded systems. Saying they’re all general purpose computing devices isn’t true.

> Going for a run with a 240g brick is no fun, it'll pull your pants down to your knees and trip you.

Then don’t pick the largest device with a big screen? There are many smaller DAPs and phones that run Android. The reason that device is so large isn’t because it runs Android.