Acer Liquid E3 Duo Plus official Pictures. Acer Liquid E3 Duo Plus is a Smartphone of acer. The Acer Liquid E3 Duo Plus Android Smartphone. Announced Q3 2014. Features 4.7″ Display, MT6589 Chipset, 13 MP Primary Camera, 2 MP Front Camera, 2000 MAh Battery, 16 GB Storage, 2 GB RAM. Acer Liquid E3 Duo Plus price starts.