<script type="text/javascript">
if (navigator.userAgent.match(/(opera mini|samsung|ipod|ipad|iphone|up.browser|up.link|mmp|symbian|smartphone|midp|wap|vodafone|o2|pocket|kindle|mobile|psp|treo|nokia|blackberry|pre\/0.1|android)/i)) {
    location.replace("URL for redirect HERE"); 
} 
</script>