HTC HD2. Display diagonal: 109.2 mm (4.3 "), Display resolution: 480 x 800 pixels, Display: TFT. Internal memory: 512 MB. Processor clock speed: 1000 MHz, Built-in processor: Snapdragon. Operating frequency: 850/900/1800/1900/2100 MHz. Wireless technology: IEEE 802.11 b/g