Nokia Lumia 710 RM-809 T-Mobile Unlocked GSM Windows 7.5 Smartphone w/ 5MP Camera - Black 2G: GSM 850 / 900 / 1800 / 1900, 3G: HSDPA 850 / 1700 / 1900 / 2100 (supports frequencies with U.S. carriers like T-Mobile & AT&T) 3.7" TFT Display Multi-Touchscreen w/ Protective Corning Gorilla Glass and Nokia ClearBlack display Microsoft Windows Phone 7.5 Mango, 1.4 GHz Scorpion Processor, Chipset: Qualcomm MSM8255 Snapdragon, Adreno 205 Graphics 5 Megapixel Camera (2592 x 1944 pixels) w/ Autofocus, LED Flash + Video Internal Memory: 8GB storage, 512 MB RAM