Is the S8 4K?

The Exynos chipset is capable of recording 4K@60fps, but the Snapdragon 835 SoC is limited to 4K@30fps. As a result of this, Samsung disabled 4K@60fps option on Exynos variants of the Galaxy S8/S8+ and the Galaxy Note 8 to maintain feature parity with their Snapdragon counterparts.