[taoistextremist]

>The great thing about a headphone port is that if you stick something in it you won't ever hear anything over the speaker.

This still kind of depends on good software. On the Galaxy S5 (which I've managed to get along with still), the built-in voicemail app will play over the speakers despite having headphones in. Led to some embarrassing moments the few times I've listened to voicemail in public.