Adding the 4k resolution screen would help push along Samsungs VR prowess by delivering a better user experience.
The Galaxy S8 could be the first smartphone from Samsung to sport a UHD display and dual-camera configuration.
The smartphone could be powered by the Snapdragon 830 SoC.

Other hardware details on the Galaxy S8 are not known at this time.

source: www.techworm.net