Rumors of a truly rough-and-ready Galaxy S5 variant have so far had little support beyond vague filings and benchmarks. However, TK Tech News has just delivered the motherlode: it has posted hands-on videos (below) of what looks to be a Galaxy S5 Active for ATT. The rugged device shown on camera shares a few superficial similarities with its bulked-up Galaxy S4 Active ancestor, including the all-mechanical navigation keys.