I would like to specify the width and the height on an Android emulator in order for it to emulate a real device that I have that has width `1440` height `1920`(not sure in what units of measurement, the values for width and height are printed with the following React Native code).

```
var {height, width} = Dimensions.get('window');
console.log("Width is: " + width);
console.log("Height is: " + height);

```

I have set the resolution to be `1440*1920` hoping that its width and height should be `1440` and `1920` respectively.

However, I get this:

```
Width is: 411.42857142857144
Height is: 683.4285714285714

```

So, how can I make an emulator have a specific width and height? What do I need to change in its configuration?