So, I have deduced the final Galaxy S8 & S8+ official specs based on confirmed leaks.
What we know so far that’s 99% true:
Galaxy S8 & S8+ will both have 18:9 or 18.5:9 aspect ratio. Resolution can be 2880×1440 or 2960×1440. There is a slight chance that 4K display comes with the phone perhaps later this year as another model for VR. But Chinese users who have actually tried the S8 and S8+ are saying resolution is definitely not 4K. The S8 & S8+ will have extra button in addition to volume buttons and power key. This is definitely a mysterious button that I hope has cool functionality. UPDATE: The extra button we presume is for the new AI (Artificial Intelligence) feature, thx Leonard Holley for the tip!