Vivo IQOO U3 official Pictures. Vivo IQOO U3 is a Smartphone of vivo. The Vivo IQOO U3 Android Smartphone. Announced Dec 2020. Features 6.58″ Display, MediaTek MT6853 Dimensity 800U 5G Chipset, 5000 MAh Battery, 128 GB Storage, 8 GB RAM. Vivo IQOO U3 price starts.