Samsung Galaxy S6 G920T 32GB T-Mobile - Black Sapphire 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1700 / 1900 / 2100, 4G: LTE 700 / 800 / 850 / 1700 (AWS) / 1800 / 1900 / 2100 / 2600 (Bands 1, 2, 3, 4, 5, 7,12, 17, 20) 5.1-inch Super AMOLED Multi-Touchscreen w/ Fingerprint sensor, Samsung Pay and Protective Corning Gorilla Glass 4 Android v5.0.2 (Lollipop), Quad-Core 1.5 GHz Cortex-A53 + Quad-Core 2.1 GHz Cortex-A57 Processor, Chipset: Exynos 742, Mali-T760 Graphics 16 Megapixel Camera (2988 x 5312 pixels) + Front-Facing 5 Megapixel Camera w/ Dual-Video, Auto HDR, Panorama, and Optical Image Stabilization Internal Memory: 32GB, 3GB RAM (not expandable)