[Hindi] What is PPI in Mobile? Do you really need 1440p or 2160p on smartphone?

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Higher PPI- pixel per inch on smartphone leads to better clarity and detailing on screen resolution. With smartphone manufacturer rolling out phones with 400 or more PPI, it becomes important for user to know whether one really needs higher PPI.

While watching content on smartphone one can differentiate between HD & Full HD resolution but it becomes hard to differentiate between QHD and 4k because mobile phone screen size is too small for any such distinction.

It’s difficult for human eyes to differentiate beyond 300 PPI:
http://www.ubergizmo.com/what-is/ppi-pixels-per-inch/

My personal recommendation is that one should not bother a lot about screen resolution. It’s quite decent to go for 1080P screen resolution.

If you are looking at using a VR headset then i will recommend you to go for high PPi on your smartphone as that will enhance your viewing experience.

Tutorial also explains:

-Resolution of video recording and screen resolution are two different things.
-Aspect ratio overview.
Higher the resolution greater will be the PPI.

You can also calculate PPI if you know screen size and resolution: we need to use pythagoras theorem

Example below - 
Screen size 5.2 inch - Resolution - 1080 X 1920p
1080 X 1080 + 1920 X 1920 = 1166400 + 3686400 =  4852800 
Square root of 4852800 = 2202.907
Above figure divided by 5.2 - screen size
We get PPI - 424.

Same way one can calculate Pixel per inch if you know screen size and resolution.
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About the creator of this video:
 
Harish Bali loves to make tutorials on use of Technology in day today life. He runs his own blog and Youtube channel in English also, Links below:
 
Blog: www.technofare.com
Youtube channel: https://www.youtube.com/channel/UCGarXbL6WbizzNzJT4wgJdQ
Facebook  page: https://www.facebook.com/profile.php?id=100006151335423

Other videos: How to stream live on Youtube:
https://www.youtube.com/watch?v=MASOBVvzQwY

How to limit wifi speed for others on router - Dlink
https://www.youtube.com/watch?v=_A42YDIJp2w 
 
Do share your opinion on the content quality of this tutorial. If you are satisfied - Do give a thumbs up to this video. Any queries: Feel free to ask in comments below, I would love to hear on this from your side.

YouTube url:	https://www.youtube.com/watch?v=oHOt1v2oSqI
Created:	2. 11. 2020 16:57:26

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[Hindi] What is PPI in Mobile? Do you really need 1440p or 2160p on smartphone?