While not the central topic, this Phandroid article includes a video showcasing the camera features of the Z520: http://phandroid.com/2015/03/01/acer-liquid-jade-z-lollipop-5-inch/
We've been tracking upcoming products and ranking the best tech since 2007. Thanks for trusting our opinion: we get rewarded through affiliate links that earn us a commission and we invite you to learn more about us.