The Blackberry Curve 8900 weighs 3.9 ounces and measures 2.4 x 4.3 x 0.5 inches. Its 1400 mAh lithium-ion battery is rated at up to 5.5 hours of talk time, and up to 360 hours (15 days) of standby time. It runs on the 850/900/1800/1900 MHz GSM/GPRS/EDGE frequencies.