Apple will make the iPhone 6s stronger with a new aluminum compound that will make it harder to bend the iPhone. After the iPhone 6 release reports of bent iPhone 6 and iPhone 6 plus units dominated news cycles and leaked parts suggest Apple will use a new 7000 series aluminum to make the new iPhones stronger.
The video above shows an alleged iPhone 6s back plate compared to the iPhone 6 back plate. This video reveals a different type of aluminum and a much stronger material.