It's hard to say whether this leak is reliable or not, but the smartphone's design - not a wildly imaginative designer's concept, but a familiar textured plastic affair, seems authentic enough. As for the operating system shown on the display, its visual style mostly matches the Tizen 2.1 screenshots that leaked last December. The upper status bar, for example, is the same between the two leaks. The flat and symmetrical aesthetic, shaped by rectangles and squares, is preserved as well.
This leak contains some specifications, too. Zeke could have a 4.8-inch HD display, a Qualcomm Snapdragon 800 CPU running at 2.3GHz, and be slightly smaller than the Galaxy S4 in size.
While not every part of this leak sounds credible, most of it manages to squeeze past the lie detector. Perhaps we will learn more truthful details from Samsung's official pre-MWC Tizen Developer event on February 23, or at the Congress itself.