NUU Mobile X4 5.0" HD LTE Unlocked Android Lollipop Smartphone with 2YR Warranty, Black 5.0" HD touchscreen  1280 x 720 resolution (267 pixels per inch) Dual 4G LTE SIMs 13 MP rear camera (with low-light sensor) / 5 MP front camera 16 GB internal ROM / 32 GB expandable storage (with microSD card) 1.3 GHz MediaTek quad-core processor