The photos show a device with rounded corners and specs that match expectations. (ie. 5-inch display, Android 4.2.1, 1080p, quad-core 1.8GHz processor, 2GB of RAM, and 13MP camera).
However, PhoneArena notes that "virtually all sources that have spoken on the Galaxy S IV so far mention that it will be a rectangular device with no rounded edges like the design we’re seeing here." The site suggests that perhaps this version of the device could be a testing prototype that keeps the real externals undercover.
Samsung has teased the Galaxy S4 announcement for March 14th.
Read More [via PhoneArena]