Nokia Lumia 520 -8gb- Unlocked Yellow 2G Network: GSM 850 / 900 / 1800 / 1900, 3G Network: HSDPA 850 / 1900 / 2100 4" IPS LCD Capacitive Multi-Touchscreen w/ Scratch-Resistant Glass Microsoft Windows Phone 8 (upgradeable to WP8), Dual-Core 1 GHz Processor, Chipset: Qualcomm MSM8227, Adreno 305 Graphics 5 Megapixel Camera (2592 x 1936 pixels) Memory: 8GB, 512 MB RAM + microSD Slot Expandable up to 64 GB