Finally, we have an official explanation for the two round holes in the back of the new HTC One. The main camera, which sits in the regular spot, houses a 4MP Ultrapixel camera much like on last years handset. The smaller lens, which is positioned directly above — or to the side when you hold the phone in landscape mode to grab a shot — contains half the resolution (i.e., 2MP), but it doesnt actually capture images.