"At 4.90 x 2.54 x 0.56 inches the Epic 4G can’t really be called discrete. It’s a hefty chunk of matte and gloss finish black and silver plastic, wider than the DROID X, and with Samsung eschewing metal but still opting for premium materials that feel suitably high-end. We’d generally prefer metal construction, but the weight impact on the Epic 4G would likely have been significant (already it’s 5.46oz). Up top there’s a 3.5mm headphone socket together with a microUSB port covered with a sliding door; on the left edge is the volume rocker and on the right the power/lock key and a camera shortcut. Under the Teflon-coated bowed back panel is a microSD slot, with Samsung including a 16GB card in the box and the Epic 4G supporting up to 32GB cards. There’s also the sizeable 1,500mAh battery." Read more here: