The KeyMission 360 already has some tough competitors. Tech reviewers have been gushing about the image quality of the 360fly 4K (about $500) and the Kodak Pixpro SP360 4K (about $450), for instance. All three cameras offer 4K/Ultra HD resolution, although only the Nikon captures the full spherical view with no blacked-out sections (which often appear at the bottom of the video). That's because the KeyMission 360 actually contains two 20-megapixel cameras, one on each side under roughly 190-degree wide-angle lenses. (You can, however, connect two of Kodak's cameras to get seamless video, for twice the price.) Heiner brags that Nikon's in-camera image stitching, which combines the two hemispheres of video, is cleaner than that of other multi-cam models, which also remains to be seen.