What exactly is the difference between the Cub and the V5?

I would like to get into Divine Tribe for waxes but am confused about what the Cub is exactly...

Is it just a base that uses the same D5 XL heating cups?

Or is it its own system completely?

I'd like to get a bubble like the Tug 2.0 bubbler, but it doesn't look like there's anything like that for the V5 besides the vertical Hubble Bubble.

Does anyone know where I can research more about these, or maybe suggest a YouTube or blog that I can look through?