Mobile detection [closed]

Answer 1

I wouldn't recommend using Javascript to detect mobile devices for the simple reason that many of them do not support Javascript, so your detection code is not guaranteed to work on all devices.

Usually the detection is done server-side using a descriptor file like WURFL which will not only help you detect the various mobile user-agents, but also their capabilities, screen sizes, color depths, etc. That way you can serve up a different configuration of assets (javascript files, image sizes, etc.) depending on the mobile device.

Answer 2

Here is a mobile detection Javascript which I can guarantee to work very well even with thin clients like Opera MIni (disclaimer: I wrote it):

https://github.com/miohtama/detectmobile.js

Answer 3

I wrote a JS script called "redirection_mobile.js" to solve this issue. It detects the User Agent and redirects to a mobile version if you're accessing a site from a mobile device.

In some case you want to redirect from a mobile device to a desktop version (like with a link "Go to the main site"), the script will handle that and once you finish your session, you'll access to the mobile version again.

You can find the source code on github here https://github.com/sebarmeli/JS-Redirection-Mobile-Site and you can read more details in one of my articles here:

http://blog.sebarmeli.com/2010/11/02/how-to-redirect-your-site-to-a-mobile-version-through-javascript/