> For the complete documentation index, see [llms.txt](https://koyodraw.gitbook.io/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://koyodraw.gitbook.io/drawtab/tablet-basics/display-density-ppi-comparision..md).

# Display density PPI comparision.

### What Is Pixel Density And Pixels Per Inch (PPI)?

> Pixel density indicates how many pixels per inch (PPI) there are on a display. The higher the pixel density, the more detailed the picture is. In contrast, displays with low pixel density will have a more pixelated image quality with duller details.

Recommendation for pen display: **160 ppi minimum** 

Avoid: lower than 120 ppi.

> Galaxy S Ultra = 498\~505 ppi 
>
> Galaxy Tab = 274 ppi 
>
> Galaxy Tab Plus = 266 ppi 
>
> Galaxy Tab Ultra = 239 ppi

> iPhone = 460 ppi 
>
> iPad mini = 327 ppi 
>
> iPad Pro = 264 ppi

> **4k 13.3" = 331 ppi** 
>
> **4k 15.6" = 282 ppi** 
>
> **4k 18.4" = 239 ppi** 
>
> **4k 21.5" = 205 ppi** 
>
> **4k 23.8" = 185 ppi** 
>
> 4k 27" = 163 ppi

> **1440p 13.3" = 220.8 ppi** 
>
> **1440p 15.6" = 188 ppi** 
>
> 1440p 21.5" = 136.6 ppi 
>
> 1440p 23.8" = 123.4 ppi 
>
> ~~1440p 27" = 108.8 ppi~~

> 1080p 13.3" = 165.6 ppi 
>
> 1080p 15.6" = 144.2 ppi 
>
> ~~1080p 21.5" = 102.4 ppi~~ 
>
> ~~1080p 23.8" = 92.6 ppi~~ 
>
> ~~1080p 27" = 81.6 ppi~~

For more explanation, check out this article: <https://www.displayninja.com/what-is-pixel-density/>&#x20;

DPI/PPI calculator: <https://www.sven.de/dpi/>&#x20;

7pen doc: <https://docs.thesevenpens.com/drawtab/guides/pen-displays/choosing-the-right-display-resolution-for-a-pen-display>![Image](https://media.discordapp.net/attachments/1427528306684727389/1427528307301421157/image.png?ex=693a5656\&is=693904d6\&hm=9d9f2bba5b35ada83adf5b3b057bbd4bf7df4ebb200aef39058ee365c6949ad6&=\&format=webp\&quality=lossless\&width=1059\&height=637)