According to @evleaks, U.S. carrier AT&T is testing a Samsung device with a model number SM-G900A, which could be a carrier version of the Galaxy S5.
The Galaxy S5 leaks are starting to come in thick and fast now. The latest tweet by @evlekas mentions that AT&T is testing a high-resolution device with a model number SM-G900A. Over the last week, we have seen two other variants of the same device, SM-G900S and SM-G900F, which means that these variants could be carrier versions of the Galaxy S5.
AT&T is testing a version of that high-res Samsung handset (SM-G900A), giving some support to the theory that it’s an int’l flagship (GS5?)
— @evleaks (@evleaks) December 18, 2013
Earlier rumors indicated that Samsung is looking to launch two versions of the Galaxy S5, one with a plastic chassis and the other with a metallic chassis. The metallic chassis device was said to feature the Galaxy F to differentiate it form the plastic version. The metallic version was rumoured to feature a flexible OLED while the plastic version will allegedly come with a QHD 2K screen.
There has also been conflicting rumors regarding the launch of the device. A few rumors last month indicated that Samsung intends to start the mass production of the Galaxy S5 in January, with a release date in March. Other rumors suggested that the device would likely be unveiled at the Mobile World Congress in Barcelona in February, with an eventual launch sometime in April.
The Galaxy S5 will allegedly come with a QHD screen, 64-bit Exynos 6xxx /Snapdragon 805 SoC, 3 GB RAM, 16-megapixel ISOCELL camera and Android 4.4 KitKat.