Not official: The information for this phone is preliminary and could be incomplete or inaccurate.
the average is 6 oz (172 g)
Hardware & Performance
BlackBerry KickStart is the first phone of the manufacturer in clamshell form-factor. Similar to the Pearl, it has trackball and SureType keyboard on the inside. As it is a clamshell, it has a second display on the front when closed, other specifications include microSDHC slot for memory, GPS and 2MP camera.
images courtesy of Expansys.com