The first way we have to make a screenshot from our smartphone, is using the corresponding keys. The key combination you have to use for it in our Samsung Galaxy S7, are very similar to the default Android, but slightly different. This time, you have to press simultaneously, the Home / Home and Power buttons.
Once you've done that, you'll hear the same sound you hear when you take a picture. That means the screen of your terminal already be captured in image form, so you can go to the gallery to find it and do with it what you want.
The second way to make a screenshot on your new smartphone is using options gestures, which are increasingly used. You will have to go to the Settings menu and select the option Movement and gestures. Once there you will have to activate the Screenshot option with a gesture, and from there you can capture images going on the side of the hand above the screen from left to right, as if your hand a scanner.