Lenovo’s Watch X was widely panned as “absolutely terrible.” As it turns out, so was its security. The low-end $50 smart watch was one of Lenovo’s cheapest smart watches. Available only for the China market, anyone who wants one has to buy one directly from the mainland. Lucky for Erez Yalon, head of security research at Checkmarx, an application security testing company, he was given one from a friend.