Mere hours after Oppo unveiled the R15 duo, vivo followed suit and announced its top-tier vivo X21 smartphone. It packs a 6.28" AMOLED screen with a notch, runs on Snapdragon 660, and has a dual-camera on its back. Sounds familiar, right? So, the X21 has a 6.28" Super AMOLED of 1,080 x 2,280 pixels at the front. In its notch sits a 12MP selfie shooter behind f/2.0 lens accompanied by an IR fill light, so it can do fast Face Wake 2.0 with 3D mapping. There is a dual-camera setup on the back with 12MP f/1.8 main shooter and a 5MP f/2.4 secondary one for various background...
Source: https://www.gsmarena.com/vivo_x21_goes_official_with_notched_screen_ud_fingerprint-news-30158.php
