Mi A1 is a better choice for camera lovers. Its has 12+12 dual camera with sharp images. The processor is same like redmi note 4 and mi max 2 is better. It has 2.5d curved glass on front looks likes apple iphone 7. The back side is full metal and it is too slippery to hold. Its has stock android 7.1.2 but now xiaomi has revealed oreo update in Mi A1. In this price range battery must be a slight higher its has only 3080 mah battery not so good.
Pros:-
It has dual camera 12+12MP
Gorilla glass protection
Better performance with snapdargon 625 chipset
Less weight
Has fingerprint sensor
Cons:-
Average battery life
Hybird sim slot
No quick charging