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kotlinlang

Hello, I am very new to app development. I wonder some basic concepta. For example if I have a an app running on a smartphone with 4k resolution with 5 inch and then run the same app on a 4k 10 inch big tablet. In the 90's thinking, the apps would look the same (per pixel thinking). But today the content will look different on the both. Size of buttons, texts ect will be different on the comparing devices. What are these size-concept called?

maybe this helps: <https://developer.android.com/training/multiscreen/screensizes>
<https://developer.android.com/guide/practices/screens_support>