Miui version is the most power-saving. Xiaomi11miui12.5 has low power consumption, good system optimization, and comprehensive optimization of application memory, performance and power consumption. By rewriting SYSTEMUI, the memory of the core scene is reduced by 20%. Among them, the system application background memory occupation decreased by 32% on average, the system application power consumption decreased by 17% on average, and the super wallpaper power consumption decreased by 40% on average, which was lighter, faster and more energy-saving.