BlackBerry Curve 8520 Unlocked GSM Keyboard + Trackpad Cell Phone - Purple (Certified Refurbished) 2.46-inch TFT Display, Full QWERTY Keyboard w/ Optical Trackpad - 320 x 240 pixel resolution (~163ppi pixel density) BlackBerry OS 5.0 2 Megapixel Camera (1600 x 1200 pixels) + Video QVGA OS: BlackBerry OS 5.0, 512 MHz Processor Internal Memory: 256 MB, microSD Slot Expandable up to 32GB