While the screen of Samsung Galaxy S8 is fantastic and offers great screen space, it can be difficult to manage with a single hand. But Samsung has thought this through and packed the device with one-handed mode features.
You can activate the one-handed mode by swiping diagonally up from the lower cornors of the device. You can also make use of the feature by tapping the home button 3 times quickly.
But before you can use these options you will need to first to activate the feature. For that you need to head to tap Settings > Advanced Features > One-handed mode.