With the iPhone, Apple is building products at a level of quality that may be unprecedented in the history of mass manufacturing. But the only way to know what that means for you, a user of the phone, is to pick it up and feel it, because objectively it does not sound like a big deal. If I tell you the greatest thing about the iPhone 5 is how it “feels,” you’ll accuse me of being a superficial aesthete who cares more for form than function. You don’t care how a phone was built or how it looks; you just want it to work. But I think that argument misses something important about what it means for a phone to “work well”: When you’re holding a device all the time, how it feels affects its functionality. Or, as Steve Jobs might say, how it feels is how it works.