The theory that a particular countries products don't last long is just not true. As to how long it will last, no one can really answer that. It depends on the person using it, their version of 'normal use' and if that individual product has a flaw or not.
I suggest you do a little searching on Google to see what owners of the device have to say. While most of us on here will know a lot about devices, we may not have owned the one you are looking at and want opinions on.