Custom font looks diferent on mobile

Topic summary

Custom Shopify font renders differently on an actual mobile device compared to desktop and the browser’s mobile preview. On a real phone the text looks “a little off,” while desktop and Chrome DevTools responsive view appear correct.

Details provided:

  • Assets: TTF, WOFF, and WOFF2 files uploaded to Shopify’s CDN.
  • Implementation: @font-face in theme.liquid for ‘FTRegolaNeue-Semibold’ with woff2, woff, and ttf sources; font-style: normal; -webkit-font-smoothing and -moz-osx-font-smoothing set to antialiased.

Evidence: Two attachments (a mobile photo and a desktop preview screenshot) are central to illustrating the rendering difference.

Status: The author is seeking help; no solutions or follow-up responses yet. The issue remains open.

Summarized with AI on December 14. AI used: gpt-5.

Hi, i have uploaded a custom font to shopify, it looks fine on desktop but on mobile it seems a little off.

i have uploaded ttf woff and woff2

this is how i have implemented the code into my theme.liquid

@font-face {
font-family: ‘FTRegolaNeue-Semibold’;
src: url(https://cdn.shopify.com/s/files/1/0706/2634/5282/files/FTRegolaNeue-Semibold.woff2?v=1730380275) format(‘woff2’);
src: url(https://cdn.shopify.com/s/files/1/0706/2634/5282/files/FTRegolaNeue-Semibold.woff?v=1730380275) format(‘woff’);
src: url(https://cdn.shopify.com/s/files/1/0706/2634/5282/files/FTRegolaNeue-Semibold.ttf?v=1731347456) format(‘truetype’);
font-style: normal;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: antialiased;
}

when using my browser to inspect mobile view it looks fine but on my actual mobile device it doesn’t.

any help would be appreciated, thanks in advance