While the smartphone world was going crazy over foldable phones at MWC 2019 last February, ZTE subsidiary nubia was presenting an alternate and equally eccentric smartphone. A smartphone most people will call a smartwatch. The nubia Alpha, however, is neither and both, making it a tad difficult to really classify. nubia, however, does call it a wearable smartphone and on Thursday it will invite the brave to try that out for themselves. If they have $450 to spare, that is.