Huawei's first trifold is a great phone that you shouldn't buy

Let's get one thing out of the way immediately: you shouldn't buy Huawei's trifold phone, the Mate XT. And that's alright, because you probably couldn't if you wanted to — while it's no longer exclusive to China, it's only on sale in a handful of countries, and not in the US or Europe. Besides, I can reel off a list of major problems with the Mate XT: at almost $4,000 it's far too expensive, it doesn't have native support for Google apps (though you can get around that more easily than you might think), it's limited to 4G, and there…