Oppo A3x official Pictures. Oppo A3x is a Smartphone of oppo. The Oppo A3x (China) Android Smartphone. Announced Jul 2024. Features 6.67″ Display Dimensity 6300 Chipset 5100 MAh Battery 512 GB Storage 8 GB RAM MIL-STD-810H Compliant. Oppo A3x price starts.