Stay connected with a GSM-compatible HTC Unlocked Cell Phone. The HTC HD7 S T9295 smartphone has loads of cool features like Windows Mobile, GPS, 5.0-megapixel digital camera, call waiting, caller ID, speakerphone, color display and more. This unlocked GSM cell phone is compatible with GSM carriers, such as AT&T and T-Mobile, and GSM SIM cards, such as H20 and select prepaid carriers.