Wemos D1 Mini v pro

Looking at the schematics of both boards, other than the antenna, I can't see any difference from the D1 mini and the D1 mini pro. Why is there a separate board type for them in IDE/tools/board? What is different between the two that would require different board parameters?

I believe the Pro has a bigger external ram chip.

Good catch. The D1 Mini has 4Mb Flash, and the pro has 16Mb Flash.