HTC Shift Unlocked Phone with 40 GB Memory, 3G, GPS, Wi-Fi Unlike most unlocked phones, this cell phone is compatible with CDMA carriers like Verizon Wireless, Alltel and Sprint. Not all carrier features may be supported. It will not work with GSM carriers like AT&T and T-Mobile. Dual-band 850/1900 Mhz CDMA with 1xRTT + 1xEvDO data capabilities Cellular mini laptop runs Windows Vista OS; slide-out QWERTY keyboard; adjustable 7-inch touch screen; biometric fingerprint sensor 40 GB hard drive; Wi-Fi networking (802.11b/g); GPS navigation; Bluetooth; VGA camera for videoconferencing Up to 2 hours of operating time using Windows Vista