Redmi 5 Plus
RAM 3GB
ROM 32GB
This is a great secondary Android phone. You will get 3-4 hours of backup with heavy usage.
You will get 7-8 hours of backup with normal usage.
And if you only receive and make calls, you will get more than 1 day of backup.
** There is a black dot on the screen; it does not grow or shrink, and it will never grow further. I have shown it to a mobile technician, and they said the same. **