Just looking at the resolution and size of a mobile phone, you can’t tell how clear it is. It’s useful to use PPi to measure the clarity of a mobile phone. PPI is not affected by size.
Friends who like it can download and test the clarity of their mobile phones. If the ppi of your mobile phone is greater than 300, it means that your mobile phone is very clear and every pixel of the screen cannot be seen with the naked eye.
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