Acer Liquid Z4 official Pictures. Acer Liquid Z4 is a Smartphone of acer. The Acer Liquid Z4 Android Smartphone. Announced Feb 2014. Features 4.0″ Display, MT6572 Chipset, 5 MP Primary Camera, 1.3 MP Front Camera, 1630 MAh Battery, 4 GB Storage, 512 MB RAM. Acer Liquid Z4 price starts.