Smartphone sales on the rise stockbot 0 110 2021.12.24 23:32 http://vietnamnews.vn/economy/1109586/smartphone-sales-on-the-rise.htm… + 7 https://vietnamnews.vn/rss/economy.rss + 1 The number of smartphones sold in Việt Nam in October soared to about 400,000, according to market research firm GfK.