The Galaxy S6 Edge can also perform a few tricks the S6 can't. There's no app drawer, but you can call up a row of contacts just by swiping in from the top right. You can customize the list, but the default is smart: It auto-populates with the people you interact with the most.

Then there's the Night Clock. This feature almost makes the Edge a no-brainer purchase. The Night Clock will automatically show the time along one of the sides (you can choose which one) for a set period of the day, for a maximum of 12 hours. Since it's an AMOLED screen, only the pixels that light up are involved, and they don't need to be bright in dark rooms, so the Night Clock sips very little power.

At some point in the 2000s, we all ditched our clock radios (and our watches, but that's another story) for the smartphone by our bedside. What this means, however, is that there's no way to see the time without reaching out and touching a button. The Edge line's signature feature gives us the clock part of our clock radio back.