红米9和红米9a哪个性价比高1、都是比较低端的百元机，红米9a和红米9这两款比较，个人感觉，应该选择处理器更好、屏幕更优、拍照能力更强的红米9A更适合，在价位相差不大的情况下，红米9A性价比更好一些。仅供参考。小米9和红米k30对比哪个更好?从续...