Bixby, which is Samsung’s personal assistant (similar to Apple’s Siri), can take a screenshot on your behalf. If Bixby has been set up and is able to listen for commands, do this:
1. Go to the screen you want to screenshot.
2. Tap and hold the power button.
3. Once Bixby appears, continue to hold the power button and say, “Take a screenshot.”
Bixby will take a screenshot and save the image in the Gallery.