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I have device Display Resolution of 320*480,3.5 inch. So its diagonal resolution is 165 ppi. So this device comes under mdpi or hdpi?

In multiple support screen document a table shows the category but, ~160 means minimum 160 0r maximum 160.

From the following image I understand,if device has,

   100 ppi - 140 ppi => ldpi
   141 ppi - 190 ppi => mdpi
   191 ppi - 280 ppi => hdpi
   281 ppi - 280 ppi => xhdpi

I want to know my understanding is correct or wrong?

Also What is the meaning of the tilde(~) symbol in the table?

Screen densities

Matt Stokes
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Ramprasad
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1 Answers1

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As you can see some density and resolution ranges overlap. On those fuzzy edges, the constructor can choose to make its device appear in one range (mdpi) or the other (ldpi).

Even a custom rom could change this setting, so this is really not dependent on the hardware indeed.

Snicolas
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  • so 100 ppi - 140 ppi => ldpi 141 ppi - 190 ppi => mdpi 191 ppi - 280 ppi => hdpi 281 ppi - 280 ppi => xhdpi is it correct – Ramprasad Apr 27 '13 at 09:23
  • Yeah, but as I tried to explain it, the edges of those ranges are fuzzy and ranges tend to overlap. – Snicolas Apr 27 '13 at 10:18
  • Great.So basically my device(320*480,3.5 inch) comes under mdpi category. I think it is base line.I can scale my bitmaps from this baseline. – Ramprasad Apr 27 '13 at 11:32