Suggested layout size for phones?

[thathorseman8964]

what is the ideal layout screen size for phones?

[tobixzybolumole]

min width of 320px and max width of 499px

[ramaarana7]

375px minimum - no phone is smaller than that.
I’d recommend using Chrome’s dev tools

1. Right click → Inspect
2. Device toolbar (Ctrl + shift + M)
3. Select the preferred device / viewport

[jake.bennett]

Admittedly it’s a small share of the market but the newer fold phones have narrower outer screens, so someone could conceivably browse on a ~340px screen.

Although that’s probably not an edge case worth worrying about.