The iPhone Duo ‘s inner screen has an under-display front camera that’s largely hidden from view. It’s the first time we’ve seen an under-display camera on an iPhone, and it turns out there’s a reason Apple hasn’t used the technology before. Apple said the camera offers 1080p video recording, but didn’t mention photo quality. Gizmodo said it’s a 4-megapixel camera and described the photos as "low-res, washed out, and just not sharp at all." It’s not good for selfies, and even video calls "look muddy." Marques Brownlee said the camera is "very first gen" and that the photo quality is "trash." Samsung previously used under-display cameras but dropped them because of poor image quality. Brownlee speculates whether Apple will make the same decision in the future…