Theyre the big three Android smartphone launches so far this year — HTCs 2014 One, Sonys Xperia Z2, and Samsungs Galaxy S5 — and they are all now hitting stores across the world. While each handset has a 1080p resolution, the One has a 5-inch screen, the S5 uses a 5.1-inch Super AMOLED panel, and the Z2 is the biggest at 5.2 inches. The HTC One is the only one of the group to not offer water resistance, but that also means its the only one that doesnt cover up its USB port with a flap. Samsung and Sony position the headphone jack at the top, and also differ from the One in placing their power buttons on the side of the phone.