How To End A Call By Pressing The Power Button on Google Pixel

By default you need to touch the red icon to end a call on Google Pixel (or Pixel XL):  But you can configure your phone to hang up when you press a Power Button. Here is how. 

1. Go to Settings: 
2. Scroll down to the System section.
3. Tap on Accessibility: 
4. Activate the option Power button ends call: 

That’s it! Now you can press the Power button to end a call. If you disable the option the Power button will just wake or turn off the screen.