To take a screenshot on an iPhone, press the Side button or Power button and the Volume Up button at the same time. To take a screenshot on your iPhone, press the Home button and the Power button (iPhones with Home button or Touch ID) at the same time. The screen will flash, and a screenshot will be saved to your Photos app. The screen will flash white, and you'll hear a sound indicating that the screenshot has been captured. You can then find the screenshot in the Photos app.