HTC Touch Diamond. Display diagonal: 71.1 mm (2.8 "), Display resolution: 640 x 480 pixels, Display: TFT. Internal memory: 256 MB, Hard drive capacity: 4 GB. Processor clock speed: 528 MHz, Built-in processor: Qualcomm MSM7201A. Operating frequency: HSDPA/WCDMA:900/2100, 900/1800/1900 MHz. Wireless technology: Wi-Fi: IEEE 802.11 b/g