While the former 5D could theoretically handle ISO 25, 600 captures as well, its native range topped out at 6400 -- venturing beyond that territory meant taking a hit on image quality, making it a seldom-used feature that benefited the camera's spec sheet far more than our low-light snap collection.
Beyond protecting the 4.3-inch, 720p panel, this sheet of glass covers the 2.1-megapixel front-facing camera (top-left) and capacitive buttons along the bottom (back, Windows and search) which are both stenciled and backlit in white.
It's actually just a quadband EDGE handset (despite what we'd previously heard) with a 1.3 megapixel camera, Bluetooth, and a 220 x 176 display -- pretty much the same spec sheet as the T639, in fact.