Looking at the tall and narrow display on the Vivo V9 might assume that its aspect ratio is 18: 9 like many other. However, power it on, and the notch at the top is reavealed. the nocth is a lot smaller ( in width) than the one on the iphone X, and houses an earpiece, a selfie camera, and the proximity and ambient light sensor. It also houses a tiny notification light in the centre, just above the earpiece.