Vivo Y31d was silently launched in select global markets, including Cambodia and Vietnam, on Wednesday. The latest handset from the China-based brand is powered by a Snapdragon 6s 4G Gen 2 chipset, which means it only supports up to 4G networks. It is equipped with a 50-megapixel dual rear camera setup, runs on Android 16-based OriginOS 6, and comes with up to an IP69…