Web/Smartphone home page image pixel size?

[Designandapplications]

Hello everyone. I was wondering what is the most useful and diplomatic pixel image size for web and smartphone home landing page images, taking into account the diversity of device screens sizes that are on the market. Thank you very much, greetings from Spain.

Edited September 10, 2018 by Designandapplications

[administrator]

Just set the image size by percentage, so it scales according to the screen size.