The HTC HD7S weighs 5.71 ounces and measures 4.8 x 2.68 x 0.44 inches. Its 1230 mAh lithium-ion battery is rated at up to 4.5 hours of talk time, and up to 276 hours (11.5 days) of standby time. It runs on the 850/900/1800/1900 MHz GSM/GPRS/EDGE frequencies as well as AT&T"s dual-band 3G network (850/1900 MHz; HSDPA/UMTS).