Latest 416MHZ Intel Xscale Processor, Latest Windows Mobile 5.0 (pocket Pc), 3.5 CPU - Intel Xscale processor 416MHz Operating System - Microsoft Windows Mobile 5.0 (Pocket PC) Display - 3.5" brilliant transflective TFT LCD with 65,000 full colors, 240 x 320 resolution and touch screen Battery - 1300mAh, removable/rechargeable Li-ion battery Memory - Built-in 1GB Flash ROM