Best android phone under 300$?

And Galaxy SX or Lg GX. Get the one according to what you want to spend. A lg g3 is pretty cheap and is a great phone.

The Samsung Galaxy Note 4 is a powerful and fun device with it's SPen. But the software is a little bit lacking now as it's been left at 6.0.1 Marshmellow. If it had nougat it would be nice, but yes, Custom Roms do work really well on it. I've rooted the heck outa my old one.

I would recommend Wiley Fox Swift 2 X, for the price i find its a decent phone. Prices on website are in though so not sure if they are available in the US