It's not fairly large and the hypothetical battery capacity inpact is negligible, if it even exists at all. I have a Sony Xperia 5V that has both a headphone jack and a micro sd card, while also having a (at the moment) top of the line processor, 5000mah of battery and being smaller than most (if not all) flagships. So yeah, I have to "resort to ad hominem" because it's the only explanation for you to choose to die on this very small hill where you're choosing to get screwed over.