What is the best resolution to use when building a prototype for mobile devices?

Hi, guys.
I couldn’t find the answer to my question here, so I’m reaching out for your help.

What is the best resolution to build a prototype for a mobile devices? The goal of that prototype is to test the product idea, not actually the design. However, what resolution should I use, specifically for mobile devices?

Thanks in advance!

I design for 375 px width and aim to keep all important elements within 700px high. If you want a quick art board choice from the right panel, go for iPhone 13 mini. Even though it is a discontinued phone - I think it represents a good minimum size for size designs to work from for min mobile res generally.

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