Android device size is a little tricky. How do we know what device size is for the phone we have?

Screen Size

For android, there are all kinds of different device out there. Here are some useful resource for looking for device screen size.

Measure Size For You Device

You can install Introspect - Apps on Google Play this app from the google play store.

Screen Calculation

To calculate the display points from pixel, Density & resolution - Material Design can be a very useful experience on understanding the calculation itself.

For easier conversion, here is a calculator you can use. Pixplicity | DP/PX converter

Dynamically Get From Code

I have written a note about how to get screen size in code.

Dynamically Get Screen Element Size - Dynamically Get Screen Element Size