The Galaxy S7 and Galaxy S7 edge are big devices. Some would argue too big. For me, they're the perfect size and as a person with large hands, I can honestly say that I don't struggle to navigate around the device using just one hand. However, there are many people who. Fortunately for them, though, Samsung has created a nifty ‘One-Handed Operation' mode that shrinks what's on the display making it easier to navigate around using a single hand.
The feature couldn't be easier to enable, either, and doesn't require you to navigate through any Settings screens. Instead, all you have to do is put your finger on either the top-left or top-right corner of the display when you're in an application then drag your finger down the screen diagonally until the UI window reduces to a size that takes your fancy. I'd recommend rescaling to the smallest possible option in order to ensure that you can easily find your way around using one hand without having to stretch your hand.
