Featuring Windows Mobile 6 Standard, triband GSM/GPRS (but not EDGE) at 900/1800/1900 MHz and singleband UMTS at 2100 MHz (but not HSDPA), Bluetooth 2.0+EDR (but not WiFi) and a 2 megapixel camera, the Treo 500 is an entry-level thumb-keyboard smartphone for messaging addicts. At a size of 16.5 x 61.5 x 110 mm, the Treo 500 weighs 120 grams. Depending on the country, Palm's vanilla Treo 500 is either available in white or gray.