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Immediately googled "9.7 inch in cm" because it's hard to imagine size in proprietary units used in only one country. But then encountered "1 lb., 7.5 mm" on the website. That's unit trolling. They should've used megahartleys per decimal second for LTE speed.


There is nothing proprietary about the inch. It's 2.54 cm. We don't have a secret "reference inch" kept under lock and key that everyone else has to ape with reverse engineering or anything. And it's used with great success in more countries than just the U.S.


Why not just use centimeters directly like the rest of the world? I've started to get used to measurements here in the US, except for Fahrenheit. My trick is to mentally approximate using: 32+2*C.


I just remember 20C = 68F as an anchor point, then it's easy to jump in 5C/9F increments.


> And it's used with great success in more countries than just the U.S.

Myanmar and Liberia? https://en.wikipedia.org/wiki/Metric_system#/media/File:Metr...


Our friends in Canada and the UK aren't discussing display sizes in centimeters.


Not really out of choice, mind you.


I live in a metric country and screen sizes are in inches, the other measures have their metric size in parenthesis, I would googled the 9.4 inches high, but not the 9.7 screen.


That's two different stats, weight and thickness. There are no weird units or combination units in play.


Apple describe the screen size in inches and the thickness in millimetres. Those are both lengths. It's understandable, because inches don't really work for small sizes, but it's quite a good illustration of why metric is preferable.


> it's quite a good illustration of why metric is preferable

How so? You'd use cm for one and mm for the other, and there's no actual reason to convert between screen size and thickness so it doesn't matter if the conversion factor is 10 or 25.4


it doesn't matter if the conversion factor is 10 or 25.4

Most people can't easily multiply by 25.4 in their head. A lot of people can't even estimate to that level (which is a shame, because it's a useful skill, but still). Converting from centimetres to millimetres is much easier.


0 * easy is the same as 0 * hard. If you're not converting, the factor doesn't matter.


Inches are not proprietary; they are in the public domain.




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