Under 50$ smartphone

[scymexx.vn]

Yo people

My nexus 5 just left me, could you please give me advice on a cheap smartphone (under 50$)

Primary qualities:
Very long battery life
3g\wifi
Able to play some basic games
Removable battery
Android

Camera, screen resolution, space etc are useless to me.

Thanks

 

[webworkings]

What carrier/service provide you are going to use will also be a factor, as not all phones will work with all carriers/service providers.