Samsung Galaxy S5 G900T T-Mobile Cellphone, 16GB, Shimmery White 5.1" Super AMOLED Capacitive Multi-Touchscreen w/ Protective Corning Gorilla Glass 3 Android v4.4.2 (KitKat), Quad-Core 2.5 GHz Krait 400 Processor, Chipset: Qualcomm MSM8974AC Snapdragon 81, Adreno 330 Graphics 16 Megapixel Rear Camera (5312 x 2988 pixels) + Front-Facing 2 Megapixel Camera Internal Memory: 16GB storage, 2GB RAM + micro SD Slot Expandable up to 128GB Unlocked cell phones are compatible with GSM carriers like AT&amp;T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.