Samsung Galaxy M31 smartphone and it is part of M series. M21 runs on Android 10 operating system. The phone is powered by Octa core (2.3 GHz, Quad core, Cortex A73 + 1.7 GHz, Quad core, Cortex A53) processor. It runs on the Samsung Exynos 9 Octa 9611 Chipset. It has 6 GB RAM and 64 GB internal storage.