I assume the basics are similar. The Miyoo Mini Plus has WiFi, which is great, but no GPU, so I assume you end up with different drivers. But the CPU is the same so everything else should be equivalent.

To clarify why I said the CPU is the same and the other poster says the A30 has a better CPU, both are true! Same architecture (Cortex A7), but the Mini Plus has 2 cores and the A30 has 4 cores.

The A30 has a better CPU, an actual GPU and more RAM. It also runs an older Linux kernel (3.4 iirc) and GCC compatibility is old so running things on it is a challenge.