OPPO A18 4G offers a high-level audio experience, thanks to the presence of the dual stereo speaker, equipped with Ultra Volume Mode technology, which allows to raise the volume of what we are listening up to 300% (200% on call).OPPO A18 4G offers performance that can support even the most intensive uses, the expansion of 4GB RAM (expandable up to 8) combined with hardware/software power ensure constant fluidity and running speed. The wide 6.56’ LCD display with refresh rate at 90Hz makes any immersive and engaging content, optimizing energy efficiency.OPPO A18 4G is equipped with a double high resolution camera (Primary 8MP, 2MP Depth). Thanks to the presence of AI, the shots will always be optimized, even in the most complex conditions. The 2MP depth camera also makes photos in portrait mode even more detailed and impactful.OPPO A18 4G is equipped with DYNAMIC COMPUTING ENGINE technology, created in collaboration with Google, which introduces an intelligent algorithm for monitoring applications in background and system memory to make the experience of use always smooth and stable. In addition, this innovative technology improves battery consumption and preserves its temperature, even under stress.The international standard IP54 certifies the resistance of a consumer electronic device to external agents such as dust and water. OPPO A18 4G is water resistant so use in the rain will not affect the functionality of the device.OPPO A18 4G has passed rigid tests that guarantee quality and resistance. The device has been tested at the Quality Center OPPO that tests five different aspects such as fall, water resistance, radiation, climate and signal. Over 130 reliability tests and 320 quality tests make OPPO one of the brands with the lowest return rate and failure on the market. OPPO A18 4G therefore obtained the fluidity certification for at least 36 months.