When Samsung's Exynos 5 Octa was announced, it was believed to be compatible with 3G networks only. As such, the HSPA+ (global) version of the Galaxy S 4 was the only handset to feature the company's eight-core SoC -- the LTE model shipping with Qualcomm's 4G-capable, quad-core Snapdragon 600 instead. That's apparently changed, with the Korean giant tweeting that the Exynos 5 Octa now supports LTE on 20 bands. So why even make a Snapdragon 600 version of the Galaxy S 4, then? Perhaps Samsung can't produce a
