Oh i guess then Vamo V7 is real and not fake then.....
There is no such thing as a real or fake Vamo. The Vamo name has become generic and basically means a device that looks (and performs) a certain way. There is no specific manufacturer of the Vamo, although many credit KSD as being the first one to bring the device to market.
The ones Fasttech sells are as good as most (I bought a V3 over a year ago) Main advice I can give is to read the reviews and check the forums over there on fasttech. They sell many different versions and a quick check of their forums is often the best way to decide if and what you should buy.