Set screen resolution for Android game

I want to set a different screen resolution for my game on the Android platform, since OUYA, Fire TV and other microconsoles are too slow for 1080p.

For SurfaceView, this could be achieved by using the function: view.getHolder().setFixedSize(width, height) . For NativeActivity : ANativeWindow_setBuffersGeometry.

More info (link).

In this way, the Android OpenGL driver uses the fastest hardware scaler to extend the screen to fit the real device resolution.

How to achieve something similar in Unreal Engine 4?