So am I correct that this generation of "Varios" has very similar sensors complements?

And the things that differentiates them is:
1)the software,
2)the display,
3)rate and breadth of access to raw sensor data and internally computed values (for example calculated wind direction) by external applications, and
4)pricing structure and packaging.
5)post-sales support
6)talent of the team and projected trajectory of the company

As the software evolves, the varios will continue to improve. A valid objective benchmark would be rather difficult and expensive to accomplish.

The decision of which to buy though is really very simple because both of them are excellent. Just pick one.