Buy on Aliexpress Doogee X10
Price — 45 USD
is actually a «half»
CPU, which is already quite well established in the budget phone with its low power consumption and at the same time modern characteristics.
The phone Doogee X10
has everything you need — the normal modern processor, metal case, screen size of 5 inch
(though with a resolution of only 854*480), secondary camera 5 megapixel, and importantly — huge
for this processor the battery into the 3360 mAh
Cons Doogee X10
— low resolution screen (tolerable) and 512Mb of RAM — but this is can be a problem for modern Android applications.