My boyfriend used my iPhone 4 for awhile as an iPod touch. He gave it back to me (with a small scratch on the screen, grr) when he got his first iPhone, a 5s, a couple of years ago.
I'm planning on giving my mom my iPhone 5s as a holiday gift. Even though it's a 2013 phone, it's definitely an upgrade from her Nokia Lumia 620, which doesn't even get LTE.