Moto G4 Play if you want something that's not totally disposable but is also sort-of an OK phone, by cheap Android phone standards. ~$130, which is pretty cheap for someone from the US on HN, most likely. You'd be sad to lose it but not that sad.

If you want an Android smartphone that's really cheap go to Wal-Mart. Unlocked Android phones south of $60.

If you can do without a smartphone you can get a dumb or feature phone for ~$10-$30.

There might even be better deals on Aliexpress or somewhere similar if you shop around.

Nice, that's pretty much what I had identified too. I had been focusing on the full Moto G4, which is like $200, hadn't realized the G4 Play could be had for $130 no contract.

I would call neither _dirt cheap_ for _my_ budget, but that is what I had arrived at as the cheapest possible that is still usable too. "Dirt" cheap, not for me, or probably most Americans, but what can you do.

(FWIW, I think it's no longer possible to get a dumbphone that will work on AT&T for $10-$30, now that AT&T turned off 2G and requires 3G even for voice. More like $60-$80 at the very lowest end that will work on AT&T. Don't know about internationally. :( )

Moto G4

A Moto E 2013 is still pretty usable... Using one right now.