Vivo X21 UD as name suggests comes with an Under display fingerprint sensor that company debuted last year.The rest of the spec remain the same as in X21 It come with a colossal 6.28 inches bezeless,Amoled display with 19:9 aspect ratio. It has the all new snapdragon 660 which coupled with 6GB RAM will give a great user experience. When it comes to camera it has 12 + 5 MP combination that will surely give you good portraits. At front you get a single 12MP selfies shooter and it has the potential to give you selfies with great detail. Last stop is the Battery and it is average 3200 mAH and with efficient Snapdragon 660 it will get you through the day of moderate to heavy usage. Check out the rest below.