ZTE Z998 Unlocked GSM 4G LTE Dual-Core Android 4.1 Smartphone - Black 2G: GSM 850 / 900 / 1800 / 1900 3G: HSDPA 850 / 1900 / 2100, 4G: LTE 700 / 1700 / 2100 (Bands 4 & 17) 4.5" Multi-Touchscreen w/ Light & Proximity Sensor and Widget Tool Bar Android v4.1.2 (JellyBean) OS, Dual-Core 1.9 GHz Krait Processor, Chipset: Qualcomm Snapdragon S4 Plus MSM8930, Adreno 305 Graphics 5 Megapixel Camera (1280 x 720 pixels) w/ LED Flash and 5x Zoom + Front-Facing Camera Internal Memory: 4GB storage, 1GB RAM + microSD Slot Expandable up to 32GB