Sony Xperia Z1 C6903 16GB Unlocked GSM 4G LTE WaterProof Smartphone w/ 20MP Camera and Shatter-Proof Glass - White 4G LTE: bands 1, 2, 3, 4, 5, 7, 8, 20 (800 / 850 / 900 1700 (AWS) / 1800 / 1900 / 2100 / 2600) ShatterProof Glass; IP58 certified: Dust-Proof and Water-Resistant over 1.5 meter up to 30 minutes 20.7 Megapixel Camera w/ Autofocus, LED Flash, Geo-Tagging, Touch Focus, Face Detection, HDR, Panorama + Front-Facing Camera Android Operating System; Quad-core 2.2 GHz Krait 400 with Qualcomm MSM8974 Snapdragon 800 Chipset Internal Memory: 16GB, 2GB RAM + microSD Slot for Expandable Memory up to 64GB