Meta viewport ONLY for phones?

Is there a way to set the general responsive meta viewport () only for phones? We have a website that without that meta tag, zoomed out, looks fine on 7" and larger tablets, portrait and landscape, but it was just a bit too inconvenient on smaller devices.

So to get it working how we wanted on phones, I had to use the <meta name="viewport"> tag, which then forced some media queries to fix things on the larger devices.

Is there a way to set that meta tag on phones, and just device default zoomed out view on larger devices?

Thanks! Rich

Solution

Do you mean this <meta name="viewport">?

<meta name="viewport" content="width=device-width, user-scalable=no" />

If so, try the following script added in the <head> (taken and adapted from here):

if(navigator.userAgent.match(/Android/i)
  || navigator.userAgent.match(/webOS/i)
  || navigator.userAgent.match(/iPhone/i)
  || navigator.userAgent.match(/iPad/i)
  || navigator.userAgent.match(/iPod/i)
  || navigator.userAgent.match(/BlackBerry/i)
  || navigator.userAgent.match(/Windows Phone/i)) {
    document.write('<meta name="viewport" content="width=device-width, user-scalable=no" />');
}

This will detect if the user-agent indicates that the browser is mobile, and will write that meta viewport as required.