Technology Vivo X21i Announced In China With 6GB Of RAM, AMOLED Display May 16, 2018 johorbiznet Johor News Vivo X21i Announced In China With 6GB Of RAM, AMOLED Display Android Headlines Vivo X21i with Mediatek P60 Chipset and 24MP Front Camera Launched in China Technology Personalized New vivo X21 World Cup Edition arrives in two fancy colors GSMArena.com Full coverage Source: Technology News Feed