vivo 1904vivo 1904 : Wireless communication technologies Bluetooth, Wi-Fi : Connectivity technologies GSM, 4G, 3G, 2G, WCDMA, (B158), (B2358), FDD_LTE, (B1358), TDD_LTE(B384041)vivo Y12 Android smartphone. Announced Jun 2019. Features 6.35″ display, MT6762 Helio P22 chipset, 5000 mAh battery, 64 GB storage, 4 GB RAM.