NIU Tek 5D official Pictures. NIU Tek 5D is a Smartphone of niu. The NIU Tek 5D Android Smartphone. Announced Jan 2015. Features 5.0″ Display MT6572M Chipset 5 MP Primary Camera 1.3 MP Front Camera 2000 MAh Battery 4 GB Storage 512 MB RAM. NIU Tek 5D price starts.