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Bubble99

macrumors 65816
Original poster
Mar 15, 2015
1,100
304
Your iPad has 2x scaling so you get sharper images and text instead of seeing a bunch of jaggies. Your actual device resolution is 1620 x 2160.
What is 2x scaling?

If the iPad has resolution of 810 x 1080 what is 2x scaling?


You can see it when you look at this.
 

hovscorpion12

macrumors 68040
Sep 12, 2011
3,043
3,122
USA
I would not look at that website. It told me my S24 Ultra is 300x300.
 

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rui no onna

Contributor
Oct 25, 2013
14,915
13,259
What is 2x scaling?

If the iPad has resolution of 810 x 1080 what is 2x scaling?


You can see it when you look at this.

Your iPad has a resolution of 1620 x 2160. If sites displayed content at the native resolution, all you’d be seeing is fine print.

The iPad shows you content for 810 x 1080 resolution (so text is large enough to be readable) upscaled to the 1620 x 2160 device resolution (sharper, less jaggies and blur).
 

Bubble99

macrumors 65816
Original poster
Mar 15, 2015
1,100
304
Your iPad has a resolution of 1620 x 2160. If sites displayed content at the native resolution, all you’d be seeing is fine print.

The iPad shows you content for 810 x 1080 resolution (so text is large enough to be readable) upscaled to the 1620 x 2160 device resolution (sharper, less jaggies and blur).
Why does iPad have this feature but not computer monitors?

Why does this other website show such low resolution


 

bradman83

macrumors 65816
Oct 29, 2020
1,286
3,266
Buffalo, NY
Why does iPad have this feature but not computer monitors?

Why does this other website show such low resolution


The website shows the effective "looks-like resolution."

Computer monitors do support this. All of Apple's laptops, the iMac, and both of Apple's monitor offerings are high resolution and designed to run in up-scaled mode. Any regular 4K or higher monitor on the market will do the same thing, and it's supported by macOS, Windows, and Linux.

Example: A 5K monitor has a resolution 5120 × 2880 but is frequently run in "looks-like" 2560 x 1440 mode, which is the equivalent of an un-scaled QHD monitor. The website is picking up the "looks-like" mode. If you were to compared a 27" 5K and 27" QHD monitor side by side everything would look the same size-wise and you'd have the same amount of usable space, but the 5K monitor would look twice as sharp because it uses those extra pixels to render sharper details.

The only monitors that don't upscale are lower-end FHD and QHD displays, and even those can be scaled to a limited degree if supported by the OS.
 

curnalpanic

macrumors 6502a
Mar 26, 2008
517
668
go:teborg
The website is wrong. It says pixels, but should really be "display points". It gets it right a bit further down though.

As we all know, Retina™ displays ideally use 2x2 or 3x3 pixels per display point to make a sharper image.
 

rui no onna

Contributor
Oct 25, 2013
14,915
13,259
Why does iPad have this feature but not computer monitors?

Why does this other website show such low resolution



It’s an OS feature. Windows 10 and 11 definitely have it.

I’m betting the 1536 x 864 on that first link are all 1920 x 1080 displays with 125% scaling.

Some of those 1920 x 1080 are probably 4K displays at 200% scaling.
 

Bubble99

macrumors 65816
Original poster
Mar 15, 2015
1,100
304
The website shows the effective "looks-like resolution."

Computer monitors do support this. All of Apple's laptops, the iMac, and both of Apple's monitor offerings are high resolution and designed to run in up-scaled mode. Any regular 4K or higher monitor on the market will do the same thing, and it's supported by macOS, Windows, and Linux.

Example: A 5K monitor has a resolution 5120 × 2880 but is frequently run in "looks-like" 2560 x 1440 mode, which is the equivalent of an un-scaled QHD monitor. The website is picking up the "looks-like" mode. If you were to compared a 27" 5K and 27" QHD monitor side by side everything would look the same size-wise and you'd have the same amount of usable space, but the 5K monitor would look twice as sharp because it uses those extra pixels to render sharper details.

The only monitors that don't upscale are lower-end FHD and QHD displays, and even those can be scaled to a limited degree if supported by the OS.

So you are saying this website https://gs.statcounter.com/screen-resolution-stats/tablet/united-states-of-america is picking up the looks-like resolution but in reality the resolution is much higher?

 

rui no onna

Contributor
Oct 25, 2013
14,915
13,259
So you are saying this website https://gs.statcounter.com/screen-resolution-stats/tablet/united-states-of-america is picking up the looks-like resolution but in reality the resolution is much higher?


Yes.

768x1024 - native resolution up to iPad 2 and iPad Mini, looks like resolution for iPad 3-6, Air 1-2, Pro 9.7 and possibly Mini 2-5 (1536x2048)

810x1080 - looks like resolution for iPad 7-9 (1620x2160)

800x1280 / 1280x800 - Android

820x1180 - looks like resolution for iPad Air 4-5 (not sure about 6) and iPad 10 (1640x2360)

1024x1366 - looks like resolution for iPad Pro 12.9 (2048x2732)
 

EugW

macrumors G5
Jun 18, 2017
14,882
12,856
Why is my screen resolution 810 x 1080?

For some strange reason this website is showing iPad screen resolution as 810 x 1080

Note this is the iPad 9 generation
Perhaps an illustration will help.

Here is a non-Retina screen compared to a Retina screen. This picture is from 12 years ago, BTW.

5YaliXK6O4luyNqha3RJOdU4nUn_9iIrJV6fJuY6cUs.jpg


The images on the two screens are identically sized.

However, the image on the left is non-Retina, at 1 pixel = 1 display point.

The image on the right is Retina, with 2 horizontal pixels and 2 vertical pixels per display point, for a total of 4 pixels per display point. People call this 2X scaled, but it's actually 2x2 scaling, for 4 times the pixels.

Your screen has 1080x810 display points, for a total of 874800 display points.
However, your screen has 2160x1620 actual pixels, for a total of 3499200 pixels.

874800 display points x 4 pixels per display point = 3499200 pixels.

You could theoretically make a Retina screen 1:1 pixels to points, but then everything would be too small and impossible to read. Apple has specifically designed the Retina screens to be 4:1 pixels to points.
 

klasma

macrumors 604
Jun 8, 2017
7,440
20,733
Why does iPad have this feature but not computer monitors?
When smartphones started to get much higher resolutions in terms of pixels-per-inch than computer monitors, mobile web browsers started to report a lower resolution to websites, so that text and graphical elements were still displayed large enough, and also so that websites still recognized that they are being displayed on a mobile device, despite the high pixel count that was previously associated only with desktop screens. Thus factors like 2x began being applied by mobile web browsers. (Web tech is a mess.)
 
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