I don't think Meizu has any presence in the US. Very popular in China, and do have their own stores. Think their largest export market is Russia. I did visit the Meizu HQ in Zhuhai about 3 years ago. Wouldn't buy one of their Flyme phones(Android fork*) although they're nice. Could be interested in an Ubuntu one though. I never heard of the other one, apparently they operate in Europe.
We do have a Meizu MX3 forum...
Meizu MX3 - Android Forums
...not exactly busy though....LOL.
* BTW quite a few Chinese manufacturers are doing their own things with Android now, and forking it. Was looking at an Oppo x909 yesterday that was running something called "ColorOS". Although in small letters it had
"based on Android".
ColorOS??????