Where do you live? I don't recommend buying a phone from China if you plan on using it in another country. Each country uses different sets of frequency bands, so a Chinese phone is tuned to the frequency bands operated in China while a Canadian phone would be tuned to those bands operated in Canada. My mom bought a Huawei phone in China, and it does not work properly in Canada.
If you want a Huawei phone, buy it in your home country.
I'm not sure about North America, but here in Malaysia, we have practically the same frequencies as China. So, usually I don't bother waiting for the "Official" Malaysian version of a smartphone. I'll just buy the Chinese version online and "flash" whatever OS that I fancy, whether official or custom later on.