Vivo X Fold S surfaced online which means Vivo’s getting ready to launch its second foldable phone. Earlier in April this year, Vivo unveiled the Vivo X Fold to mark its debut in the foldable phone market. And now it seems like another foldable phone from Vivo – the X Fold S – is in the offing. The Chinese smartphone maker will launch its upcoming premium foldable phone in China.