I'm a little confused about how to determine which phones support what layout types. I've done some research but haven't found a satisfying answer.

For example, I've found the below guide:

xlarge screens are at least 960dp x 720dp
large screens are at least 640dp x 480dp
normal screens are at least 470dp x 320dp
small screens are at least 426dp x 320dp

However, I still have some concerns:

  1. Samsung grand (480*800) and HTC wild fire S (320*480) both support MDPI. These screens have very different resolutions, yet have the same layout type?

  2. Galaxy note 2 (1280*720) support HDPI. If HD (720p) is only HDPI, when what device/resolution supports XHDPI?

  3. I've already asked a related question here: How to set layout on 7" two different tablet?.

  4. My most important question, however, is this: How do I know which devices or screen resolutions support each layout type?

android android-layout android-resources android-resolution
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