Two is better than one, they said. The same is also true for smartphone cameras. In the past years, dual rear cameras have been all the rage. But global smartphone brand Vivo has been pushing the technology further to enhance every user’s experience. The Vivo X21 has a 12-megapixel+5MP dual rear camera. The dual rear camera of Vivo X21 is equipped with Dual Pixel Sensors that come with fast-focusing technology to rival the quality of professional cameras. To be specific, the dual rear camera renders a well-focused image in just 0.03 seconds. This is achieved because each camera sensor pixel of the X21 is built with two independent photodiodes or light sensors. They capture two sets of image data when a photo is taken. The two sets of data captured by photodiodes from each pixel are matched to get the perfect focus. The result is a seamless experience to every Vivo X21 user who want to capture those fleeting moments in one quick snap. Because nothing can be more frustr...