The G3's most distinguishing feature is its screen: It has a mind-blowing 2,560 x 1,440 resolution, which means its pixel density is a truly eye-popping 538 pixels per inch. To put that in perspective, that's the same resolution as a 27-inch iMac. The LG G3 isn't the first phone with this high of a resolution, but It's the first mainstream smartphone. LG calls it "quad-HD," but that's a bit of a mis**mer — this isn't a 4K display in a smartphone, but It's the highest resolution I've seen to date