Let's just quote Samsung from their launch event:
"The Samsung Galaxy S6 gold model shouldn't bend when a user places in a back pocket and sits down, as certain other smartphones do."
ibtimes:
"Samsung has ditched its typical polycarbonate designs in favor of metal and glass on the Galaxy S6 and Galaxy S6 Edge, and the devices are already receiving rave reviews for their look and feel. Although Apple has been using metal and glass for years, Samsung said it has one-upped its rival by using a metal that is 50 percent stronger than the metal on other high-end smartphones, noting it wont bend under pressure.
The iPhone 6 and iPhone 6 Plus were infamous for the so-called bendgate incidents that occurred upon their release: Some users found the devices would bend when they placed the handsets in their back pockets and sat down.
Back to the Galaxy S6 and Galaxy S6 Edge: The smartphones come in color options including black, blue, gold, green and white. The back panels provide a translucent look. As a result, the black model takes on a dark-bluish hue, while the gold model transitions between gold and silver, depending on its angle.
Samsungs employment of Gorilla Glass 4 on the Galaxy S6 and Galaxy S6 Edge means the devices are pretty well protected from shattering in the event of drops. Currently, the iPhone 6 and iPhone 6 Plus use Gorilla Glass 3."
This is the spiel given to the press for them to repeat in their articles.