Are fluid dynamic bearing and hydro bearing types the same thing?

Question

Iron

For two similar fans of the same company, the price is very different, for the more expensive one, Fluid dynamic bearing is indicated on the package , for the cheap one, respectively , hydro bearing , and in the "list" of the store they both write the hydrodynamic
type. Interesting - is this such a find ... or just a model various ?
Which fan is best?
Fluid dynamic bearing
hydro bearing

Answer 1

wahah)))) iron is literally straight))) well, googol says that this is the same thing - a hydrodynamic bearing.
www.nix.ru/computer_hardware_news/hardware_news_vi...

Answer 2

As far as I understand, they are one and the same. In articles on the types of bearings in coolers, I even saw how they write Fluid/Hydro. For example, here .
There is an idea that they differ not in the principle of operation, but in the type of this very liquid medium. And you need to look for more details from the manufacturer.