I\'m looking for a list of all screen aspect ratios for popular Android based Phones and Tablets.
I researched the same thing several months ago looking at dozens of the most popular Android devices. I found that every Android device had one of the following aspect ratios (from most square to most rectangular):
And if you consider portrait devices separate from landscape devices you'll also find the inverse of those ratios (3:4, 2:3, 5:8, 3:5, and 9:16)
More complete answer here: stackoverflow community spreadsheet of Android device resolutions and DPIs
the best way to calculate the equation is simplified. That is, find the maximum divisor between two numbers and divide:
ex.
1920:1080 maximum common divisor 120 = 16:9
1024:768 maximum common divisor 256 = 4:3
1280:768 maximum common divisor 256 = 5:3
may happen also some approaches
It is safe to assume that popular handsets are WVGA800 or bigger. Although, there are a good amount of HVGA screens, they are of secondary concern.
List of android screen sizes
http://developer.android.com/guide/practices/screens_support.html
Aspect ratio calculator
http://andrew.hedges.name/experiments/aspect_ratio/
The Sony Tablet P is old, but it can switch between 32:15 and 32:30 for each app in landscape mode, and vice-versa in portrait mode, so that's a minimum range to aim for
In case anyone wanted more of a visual reference:
Decimal approximations reference table:
╔══════════════════════════╦════════════════════════╦════════════════════════╗
║ aspect ratio ║ decimal approx. ║ decimal approx. ║
║ [long edge x short edge] ║ [short edge/long edge] ║ [long edge/short edge] ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 19.5 x 9 ║ 0.462... ║ 2.167... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 19 x 9 ║ 0.474... ║ 2.11... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ ~18.7 x 9 ║ 0.482... ║ 2.074... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 18.5 x 9 ║ 0.486... ║ 2.056... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 18 x 9 ║ 0.5 ║ 2 ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 19 x 10 ║ 0.526... ║ 1.9 ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 16 x 9 ║ 0.5625 ║ 1.778... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 5 x 3 ║ 0.6 ║ 1.667... ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 16 x 10 ║ 0.625 ║ 1.6 ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 3 x 2 ║ 0.667... ║ 1.5 ║
╠══════════════════════════╬════════════════════════╬════════════════════════╣
║ 4 x 3 ║ 0.75 ║ 1.333... ║
╚══════════════════════════╩════════════════════════╩════════════════════════╝
Changelog:
56x27 === ~18.7x9
(Huawei P20), 19x9
(Nokia X6 2018) and 19.5x9
(LG G7 ThinQ)19x10
(Essential Phone)18.5x9
(Samsung Galaxy S8) and 18x9
(LG G6)