The Vivo X21 is the first phone with an in-display fingerprint sensor. After being showcased at CES 2018 earlier this year, it has made its way to India at a price of Rs 35,990. The X21 is Vivo&#39;s flagship phone for India and it features an edgeless display, but with a notch on top. The phone treads in the territory of the OnePlus 6 while the Honor 10 and the Nokia 7 Plus breathes heavily on its back. Vivo is hoping the future-forward tech is enough to carry the phone through, but there are other premium features as well. We give you a rundown of how the Vivo X21 looks and the phone&#39;s features with the help of photos.