Great point. I ordered three watches
CD12 Max W527 chinese version. Recieved a CD12 Max EU version with wifi hardware issue ( well reported ) and unusable firmware
S100 W527 chinese version and recieved S100 W527 chinese version 
CD20 Max W527 chinese version. Recieved a CD20 W377 EU version
Full refund recieved for CD12max and CD20 sent in error