Most people need basic phone protection, then there are people who need Pelican cases.
The Pelican name is associated with protecting valuables — particularly electronics and camera gear — against basically anything you can think of, and its Protector and Voyager phone cases bring that idea down to your Galaxy S6. The two cases each offer something different, but are both a step above any "average" cheap case you can throw on your phone.
Extra protection, a specialized look and a name that you can trust is what you get with Pelican cases — here's what they look like for the Galaxy S6 and S6 edge.

Pelican Protector

The Protector case is more of an "every day" case that's likely the most appealing to regular users — but that doesn't mean it won't cover your phone from plenty of punishment. There are models for both the Galaxy S6 and S6 edge (the latter shown here), but both are basically the same.
You get a hard plastic and rubber case that's flexible enough to fit around the phone without any complex parts, but is rather tough otherwise. The hard plastic back is surrounded by rubber to help it from sliding off of surfaces, and it's thick enough to keep the camera pod from touching a surface when you set it down. You'll find the same softer material around the sides to help you grip it, so you hopefully won't even need the extra protection from drops.