Samsung torture-tests pre-release smartphones like many of its rivals, but it's rare in letting us have glimpses of the process. Case in point: its thorough punishment of Galaxy S 4 samples in a new video. Along with drop-testing the phone in multiple ways, the company's lab techs cover the GS4 in dust, dunk it in water, punch it, shock its controls and even bake it. The promo piece unsurprisingly shows the flagship device making the cut every time -- you didn't think Samsung would show any exceptions to the rule, did you? Still, the Korean-language clip (after the break) may be reassuring to those who were worried that a thinner, lighter Galaxy S couldn't hold up to some abuse.